{"id":3634,"date":"2026-01-20T11:33:43","date_gmt":"2026-01-20T03:33:43","guid":{"rendered":"https:\/\/quartz-grinding.epic-powder.com\/?p=3634"},"modified":"2026-01-20T11:33:46","modified_gmt":"2026-01-20T03:33:46","slug":"how-can-advanced-silica-powder-air-classification-technology-achieve-a-narrow-particle-size-distribution","status":"publish","type":"post","link":"https:\/\/quartz-grinding.epic-powder.com\/fr\/how-can-advanced-silica-powder-air-classification-technology-achieve-a-narrow-particle-size-distribution\/","title":{"rendered":"Comment la technologie avanc\u00e9e de classification pneumatique de la poudre de silice peut-elle permettre d&#039;obtenir une distribution granulom\u00e9trique \u00e9troite\u00a0?"},"content":{"rendered":"<p>La silice (SiO\u2082), notamment sous des formes telles que <a href=\"https:\/\/quartz-grinding.epic-powder.com\/fr\/\">poudre de quartz<\/a>La silice fondue, ou silice pr\u00e9cipit\u00e9e, est une mati\u00e8re premi\u00e8re essentielle dans de nombreuses industries de haute technologie. Parmi celles-ci figurent les semi-conducteurs, les panneaux solaires photovolta\u00efques, les rev\u00eatements avanc\u00e9s, les charges fonctionnelles dans les composites, les c\u00e9ramiques de pr\u00e9cision et les caoutchoucs\/plastiques haute performance. Dans ces applications, les performances de la poudre de silice sont fortement influenc\u00e9es par ses caract\u00e9ristiques granulom\u00e9triques, et plus particuli\u00e8rement par sa distribution granulom\u00e9trique. Afin d&#039;atteindre le niveau de constance rigoureux exig\u00e9 par ces secteurs, la poudre de silice est utilis\u00e9e. <a href=\"https:\/\/quartz-grinding.epic-powder.com\/fr\/ultrafine-air-classifier\/\">classification a\u00e9rienne<\/a> elle s&#039;est impos\u00e9e comme la technologie la plus efficace pour s\u00e9parer avec pr\u00e9cision les fractions submicroniques et \u00e9liminer les particules surdimensionn\u00e9es ind\u00e9sirables, garantissant ainsi que le produit final r\u00e9ponde aux normes industrielles les plus \u00e9lev\u00e9es.<\/p>\n\n\n\n<p>Une distribution granulom\u00e9trique \u00e9troite signifie un faible \u00e9cart entre les particules les plus fines et les plus grossi\u00e8res. Ceci est souvent quantifi\u00e9 \u00e0 l&#039;aide de param\u00e8tres tels que\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D10<\/strong> \u2014 taille des particules en dessous de laquelle se situe la fraction 10% du mat\u00e9riau (indiquant la queue fine)<\/li>\n\n\n\n<li><strong>D50<\/strong> \u2014 taille m\u00e9diane des particules<\/li>\n\n\n\n<li><strong>D90<\/strong> ou <strong>D97<\/strong> \u2014 taille des particules en dessous de laquelle se situe la valeur 90% ou 97% du mat\u00e9riau (indiquant la queue grossi\u00e8re)<\/li>\n<\/ul>\n\n\n\n<p>Le ratio <strong>D90\/D10<\/strong> Le rapport D97\/D10 (ou parfois D97\/D10) sert de mesure directe de la largeur de la distribution granulom\u00e9trique. Un rapport proche de 1 indique une distribution granulom\u00e9trique extr\u00eamement uniforme et \u00e9troite, tandis que des valeurs plus \u00e9lev\u00e9es refl\u00e8tent des distributions plus larges avec davantage de fractions fines ou grossi\u00e8res.<\/p>\n\n\n\n<p>Pour de nombreuses applications de silice de qualit\u00e9 sup\u00e9rieure, les fabricants ciblent D90\/D10 &lt; 2\u20133 (ou m\u00eame plus serr\u00e9), avec D97 contr\u00f4l\u00e9 avec pr\u00e9cision (par exemple, D97 &lt; 10 \u00b5m ou &lt; 5 \u00b5m pour les qualit\u00e9s ultra-fines) et des particules surdimensionn\u00e9es minimales.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"451\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/quartz-powder-air-classifier.webp\" alt=\"classificateur d&#039;air \u00e0 poudre de quartz\" class=\"wp-image-3512\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/quartz-powder-air-classifier.webp 800w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/quartz-powder-air-classifier-300x169.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/quartz-powder-air-classifier-768x433.webp 768w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/quartz-powder-air-classifier-18x10.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">classificateur d&#039;air \u00e0 poudre de quartz<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Pourquoi une distribution granulom\u00e9trique \u00e9troite est importante pour la silice<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Semiconducteurs \/ Photovolta\u00efque<\/strong> \u2014 Des niveaux extr\u00eamement faibles de particules grossi\u00e8res (contr\u00f4le &gt; D97) pr\u00e9viennent les d\u00e9fauts dans les films minces, les rev\u00eatements ou les encapsulants. Un tassement uniforme des particules am\u00e9liore la stabilit\u00e9 de la suspension et l&#039;homog\u00e9n\u00e9it\u00e9 du film.<\/li>\n\n\n\n<li><strong>produits de comblement fonctionnels<\/strong> \u2014 Une distribution granulom\u00e9trique \u00e9troite am\u00e9liore la dispersion, r\u00e9duit la viscosit\u00e9 dans les compos\u00e9s \u00e0 forte concentration et am\u00e9liore les propri\u00e9t\u00e9s m\u00e9caniques et optiques.<\/li>\n\n\n\n<li><strong>Rev\u00eatements et encres<\/strong> \u2014 Emp\u00eache le colmatage des buses, assure une brillance\/transparence uniforme et \u00e9vite le d\u00e9p\u00f4t.<\/li>\n\n\n\n<li><strong>C\u00e9ramique<\/strong> \u2014 Am\u00e9liore la densit\u00e9 du corps cru et l&#039;uniformit\u00e9 du frittage.<\/li>\n<\/ul>\n\n\n\n<p>\u00c0 l&#039;inverse, une distribution granulom\u00e9trique large entra\u00eene une mauvaise aptitude au traitement, des performances produit incoh\u00e9rentes et des taux de rejet plus \u00e9lev\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Limites des m\u00e9thodes de classification traditionnelles<\/h3>\n\n\n\n<p>Le tamisage traditionnel ou la classification m\u00e9canique peinent \u00e0 atteindre les particules inf\u00e9rieures \u00e0 20\u201350 \u00b5m en raison de l&#039;agglom\u00e9ration, du faible rendement et des risques de contamination (particuli\u00e8rement probl\u00e9matiques pour la silice de haute puret\u00e9). C&#039;est l\u00e0 que les technologies avanc\u00e9es de classification pneumatique des poudres de silice deviennent indispensables.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Principes fondamentaux des classificateurs d&#039;air modernes<\/h3>\n\n\n\n<p>Les classificateurs \u00e0 air s\u00e9parent les particules en utilisant les forces a\u00e9rodynamiques d&#039;un flux de gaz (g\u00e9n\u00e9ralement de l&#039;air). Les principales forces en jeu sont\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Force centrifuge (due \u00e0 la rotation de la roue classificatrice ou du vortex)<\/li>\n\n\n\n<li>Force de tra\u00een\u00e9e (due au flux d&#039;air)<\/li>\n\n\n\n<li>Gravit\u00e9 (dans certains mod\u00e8les)<\/li>\n<\/ul>\n\n\n\n<p>Les particules sont achemin\u00e9es vers une zone de classification o\u00f9 les particules les plus fines suivent le flux d&#039;air jusqu&#039;\u00e0 la sortie du produit fin, tandis que les particules plus grossi\u00e8res sont rejet\u00e9es et renvoy\u00e9es (ou \u00e9vacu\u00e9es s\u00e9par\u00e9ment).<\/p>\n\n\n\n<p>Les conceptions avanc\u00e9es permettent des d\u00e9coupes \u00e9troites \u00e0 travers\u00a0:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Roues classificatrices \u00e0 haut rendement<\/strong> \u2014 Rotors multiroues \u00e0 grande vitesse avec g\u00e9om\u00e9trie de pale optimis\u00e9e<\/li>\n\n\n\n<li><strong>Injection d&#039;air secondaire pr\u00e9cise<\/strong> \u2014 Flux d&#039;air secondaire r\u00e9glable pour aff\u00fbter le tranchant<\/li>\n\n\n\n<li><strong>Contr\u00f4le de vitesse dynamique\/variable<\/strong> \u2014 R\u00e9glage en temps r\u00e9el de la vitesse du rotor et du d\u00e9bit d&#039;air pour des points de coupe pr\u00e9cis<\/li>\n\n\n\n<li><strong>Turbulence et recirculation minimis\u00e9es<\/strong> \u2014 Optimisation avanc\u00e9e du bo\u00eetier et du vortex pour r\u00e9duire les fuites et am\u00e9liorer la nettet\u00e9<\/li>\n\n\n\n<li><strong>Construction \u00e0 faible usure et sans contamination<\/strong> \u2014 Rev\u00eatements c\u00e9ramiques, rev\u00eatements polym\u00e8res ou alliages sp\u00e9ciaux pour le traitement de la silice de haute puret\u00e9<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"581\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/10\/Air-Classifier-.webp\" alt=\"Classificateur d&#039;air\" class=\"wp-image-3387\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/10\/Air-Classifier-.webp 800w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/10\/Air-Classifier--300x218.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/10\/Air-Classifier--768x558.webp 768w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/10\/Air-Classifier--18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Technologies de classification de la poudre de silice par l&#039;air<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Type de technologie<\/th><th>Finesse typique (D97)<\/th><th>Nettet\u00e9 PSD (D90\/D10)<\/th><th>Applications typiques de la silice<\/th><th>Caract\u00e9ristiques repr\u00e9sentatives<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/quartz-grinding.epic-powder.com\/fr\/ultrafine-air-classifier\/\">Multiroues horizontales (par exemple, HTS s\u00e9rieux) <\/a><\/td><td>2\u201310 \u00b5m<\/td><td>1,5\u20132,5<\/td><td>Quartz ultra-pur pour semi-conducteurs<\/td><td>Haute efficacit\u00e9 de classification, faible consommation d&#039;\u00e9nergie<\/td><\/tr><tr><td><a href=\"https:\/\/quartz-grinding.epic-powder.com\/fr\/machines\/vertical-air-classifier\/\">Tourbillon vertical forc\u00e9 (par exemple, ITC s\u00e9rieux)<\/a><\/td><td>3\u201315 \u00b5m<\/td><td>1,8\u20133,0<\/td><td>Silice de qualit\u00e9 photovolta\u00efque, rev\u00eatements<\/td><td>Id\u00e9al pour les mat\u00e9riaux abrasifs, r\u00e9glage facile<\/td><\/tr><tr><td>broyeur \u00e0 jet int\u00e9gr\u00e9 + classificateur<\/td><td>1\u20138 \u00b5m<\/td><td>1,4\u20132,2<\/td><td>silice ultrafine de qualit\u00e9 \u00e9lectronique<\/td><td>Aucune contamination des m\u00e9dias, contr\u00f4le pr\u00e9cis de la coupe sup\u00e9rieure<\/td><\/tr><tr><td>classificateur d&#039;air dynamique <\/td><td>5\u201320 \u00b5m<\/td><td>2,0\u20133,5<\/td><td>Charges fonctionnelles, caoutchouc\/plastiques<\/td><td>Broyage et classification combin\u00e9s dans une seule unit\u00e9<\/td><\/tr><tr><td><a href=\"https:\/\/quartz-grinding.epic-powder.com\/fr\/machines\/ultrafine-air-classifier\/centrifugal-classifier\/\">Classificateur d&#039;air centrifuge (par exemple, CTC s\u00e9rieux)<\/a><\/td><td>10\u201350 \u00b5m<\/td><td>2,5\u20134,0<\/td><td>silice pr\u00e9cipit\u00e9e de qualit\u00e9 industrielle<\/td><td>D\u00e9bit \u00e9lev\u00e9, robuste pour les fractions plus grossi\u00e8res<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Obtention d&#039;une distribution granulom\u00e9trique \u00e9troite lors du traitement de la silice<\/h3>\n\n\n\n<p>Dans les lignes de production modernes de silice haut de gamme, la configuration la plus courante et la plus efficace est\u00a0:<\/p>\n\n\n\n<p><strong>Broyeur \u00e0 jet \u00e0 lit fluidis\u00e9 + classificateur d&#039;air ind\u00e9pendant \u00e0 haute efficacit\u00e9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le broyeur \u00e0 jet assure un broyage ultrafin sans contamination (par collision entre particules).<\/li>\n\n\n\n<li>Le classificateur ind\u00e9pendant permet une coupe pr\u00e9cise et nette (ind\u00e9pendamment des param\u00e8tres de rectification).<\/li>\n\n\n\n<li>Syst\u00e8me en boucle ferm\u00e9e avec contr\u00f4le pr\u00e9cis du d\u00e9bit d&#039;air, de la vitesse du rotor et de l&#039;air secondaire<\/li>\n\n\n\n<li>Surveillance PSD en ligne (diffraction laser) + contr\u00f4le de r\u00e9troaction automatique<\/li>\n<\/ul>\n\n\n\n<p>Cette configuration permet d&#039;atteindre r\u00e9guli\u00e8rement D97 = 2\u20135 \u00b5m avec D90\/D10 &lt; 2,0\u20132,5 et une tr\u00e8s faible teneur en particules surdimensionn\u00e9es (&lt;0,1% &gt; 2\u00d7D97).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tendances futures<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Contr\u00f4le assist\u00e9 par l&#039;IA\/ML<\/strong> \u2014 Ajustement en temps r\u00e9el en fonction de la variabilit\u00e9 des donn\u00e9es entrantes<\/li>\n\n\n\n<li><strong>Classification en plusieurs \u00e9tapes<\/strong> \u2014 Coupes s\u00e9quentielles fines\/grossi\u00e8res pour des distributions ultra-\u00e9troites<\/li>\n\n\n\n<li><strong>Conceptions \u00e9co\u00e9nerg\u00e9tiques<\/strong> \u2014 Perte de charge r\u00e9duite, a\u00e9rodynamisme optimis\u00e9<\/li>\n\n\n\n<li><strong>Proc\u00e9d\u00e9s \u00e0 sec pour une durabilit\u00e9<\/strong> \u2014 Remplacement de la classification des eaux us\u00e9es par voie humide afin de r\u00e9duire la consommation d&#039;eau et la production d&#039;eaux us\u00e9es<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/quartz-grinding.epic-powder.com\/fr\/contact\/\">Conclusion<\/a><\/h3>\n\n\n\n<p>La technologie avanc\u00e9e de classification pneumatique est devenue indispensable \u00e0 la production de poudres de silice haute performance \u00e0 granulom\u00e9trie \u00e9troite. En contr\u00f4lant pr\u00e9cis\u00e9ment la fraction grossi\u00e8re (D90\/D97) tout en minimisant la variation de la fraction fine, ces syst\u00e8mes permettent \u00e0 la silice de r\u00e9pondre aux exigences rigoureuses des technologies de nouvelle g\u00e9n\u00e9ration telles que l&#039;\u00e9lectronique, le photovolta\u00efque et les mat\u00e9riaux avanc\u00e9s. Face \u00e0 la demande croissante de granulom\u00e9tries plus fines (par exemple, un rapport D90\/D10 proche de 1,3\u20131,8), les innovations en mati\u00e8re de conception des roues de classification, de gestion des flux d&#039;air et de contr\u00f4le intelligent demeureront au c\u0153ur de l&#039;ing\u00e9nierie des poudres de silice.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img decoding=\"async\" width=\"721\" height=\"721\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-3549\" style=\"width:150px;height:150px\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp 721w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-300x300.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-150x150.webp 150w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u00ab Merci de votre lecture. J\u2019esp\u00e8re que cet article vous sera utile. N\u2019h\u00e9sitez pas \u00e0 laisser un commentaire ci-dessous. Pour toute question, vous pouvez \u00e9galement contacter le service client en ligne de Zelda. \u00bb<\/p>\n<cite>                                                                                                                                                                            \u2014 Publi\u00e9 par <a href=\"https:\/\/www.linkedin.com\/company\/76603359\/admin\/dashboard\/\">Emily Chen<\/a><\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/fr\/wp-json\/wp\/v2\/posts\/3634#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/posts\/3634#wpcf7-f16-o1\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.0.6\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/div>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre nom*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Votre entreprise\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Votre message\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>La silice (SiO\u2082), notamment sous forme de poudre de quartz, de silice fondue ou de silice pr\u00e9cipit\u00e9e, est une mati\u00e8re premi\u00e8re essentielle dans de nombreuses industries de haute technologie. Parmi celles-ci figurent les semi-conducteurs, les panneaux solaires photovolta\u00efques, les rev\u00eatements avanc\u00e9s, les charges fonctionnelles dans les composites, les c\u00e9ramiques de pr\u00e9cision et les caoutchoucs\/plastiques haute performance. Dans ces applications, les performances de la poudre de silice sont fortement influenc\u00e9es par la granulom\u00e9trie de ses particules [\u2026]<\/p>","protected":false},"author":1,"featured_media":3512,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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