{"id":2387,"date":"2026-06-15T07:10:13","date_gmt":"2026-06-15T07:10:13","guid":{"rendered":"https:\/\/www.xkh-ceramics.com\/?p=2387"},"modified":"2026-06-15T07:10:25","modified_gmt":"2026-06-15T07:10:25","slug":"porous-silicon-carbide-sic-ceramic-support","status":"publish","type":"post","link":"https:\/\/www.xkh-ceramics.com\/sv\/porous-silicon-carbide-sic-ceramic-support\/","title":{"rendered":"Por\u00f6st keramiskt st\u00f6d av kiselkarbid (SiC): Studie av sintringsteknik vid l\u00e5g temperatur och prestanda"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Por\u00f6sa keramiska b\u00e4rare av kiselkarbid (SiC) anv\u00e4nds i stor utstr\u00e4ckning i avancerade membranfiltreringssystem tack vare sin utm\u00e4rkta termiska stabilitet, h\u00f6ga mekaniska h\u00e5llfasthet och \u00f6verl\u00e4gsna kemiska best\u00e4ndighet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xkh-ceramics.com\/sv\/produkt-kategori\/silicon-carbide-sic\/\">SiC-baserade keramiska material <\/a>\u00e4r s\u00e4rskilt l\u00e4mpliga f\u00f6r kr\u00e4vande milj\u00f6er, s\u00e5som filtrering vid h\u00f6ga temperaturer, avloppsrening och kemisk bearbetning. Konventionell SiC-keramik kr\u00e4ver dock extremt h\u00f6ga sintringstemperaturer (&gt;2000 \u00b0C), vilket begr\u00e4nsar storskalig industriell produktion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00f6r att hantera denna utmaning har l\u00e5gtemperatursintring i flytande fas med hj\u00e4lp av glastillsatser visat sig vara en effektiv l\u00f6sning.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.xkh-ceramics.com\/wp-content\/uploads\/2026\/06\/Porous-Silicon-Carbide-SiC-Ceramic-Support-Low-Temperature-Sintering-Technology-and-Performance-Study.png\" alt=\"\" class=\"wp-image-2389\" srcset=\"https:\/\/www.xkh-ceramics.com\/wp-content\/uploads\/2026\/06\/Porous-Silicon-Carbide-SiC-Ceramic-Support-Low-Temperature-Sintering-Technology-and-Performance-Study.png 800w, https:\/\/www.xkh-ceramics.com\/wp-content\/uploads\/2026\/06\/Porous-Silicon-Carbide-SiC-Ceramic-Support-Low-Temperature-Sintering-Technology-and-Performance-Study-300x225.png 300w, https:\/\/www.xkh-ceramics.com\/wp-content\/uploads\/2026\/06\/Porous-Silicon-Carbide-SiC-Ceramic-Support-Low-Temperature-Sintering-Technology-and-Performance-Study-768x576.png 768w, https:\/\/www.xkh-ceramics.com\/wp-content\/uploads\/2026\/06\/Porous-Silicon-Carbide-SiC-Ceramic-Support-Low-Temperature-Sintering-Technology-and-Performance-Study-16x12.png 16w, https:\/\/www.xkh-ceramics.com\/wp-content\/uploads\/2026\/06\/Porous-Silicon-Carbide-SiC-Ceramic-Support-Low-Temperature-Sintering-Technology-and-Performance-Study-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Strategi f\u00f6r l\u00e5gtemperatursintring av SiC-keramik<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">I denna studie har en <strong>zirkoniuminneh\u00e5llande glasfrit<\/strong> framtaget ur l\u00e5gkostnadsskiffer inf\u00f6rdes som ett sintringshj\u00e4lpmedel f\u00f6r att fr\u00e4mja bindning i flytande fas och avsev\u00e4rt s\u00e4nka sintringstemperaturen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Glasfritten framst\u00e4lls genom att sm\u00e4lta r\u00e5material av skiffer vid 1500 \u00b0C, vilket ger upphov till ett glas med flera oxider som inneh\u00e5ller:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SiO\u2082, Al\u2082O\u2083, CaO (n\u00e4tverksstruktur)<\/li>\n\n\n\n<li>ZrO\u2082 (f\u00f6rb\u00e4ttrar korrosionsbest\u00e4ndigheten)<\/li>\n\n\n\n<li>Fe\u2082O\u2083, MgO, Na\u2082O, K\u2082O (f\u00f6rb\u00e4ttrar sintringsf\u00f6rm\u00e5gan)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Med denna metod kan SiC-keramik f\u00f6rt\u00e4tas vid <strong>1100\u20131250 \u00b0C<\/strong>, vilket avsev\u00e4rt minskar energif\u00f6rbrukningen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e5varor och tillverkningsprocess<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e5varusystem<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kiselkarbidpulver (SiC) (renhet 99,5%, D50 \u2248 15,1 \u03bcm)<\/li>\n\n\n\n<li>Zirkoniumhaltig glasfrit (tillsatsmedel f\u00f6r l\u00e5gtemperatursintring)<\/li>\n\n\n\n<li>Grafitpartiklar (D50 \u2248 19,4 \u03bcm, porbildande medel)<\/li>\n\n\n\n<li>Karboximetylcellulosa (CMC, bindemedel)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Bearbetningssteg<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Blandning av SiC-pulver, glasfrit och grafit i fastst\u00e4llda proportioner<\/li>\n\n\n\n<li>Kulmalning med 0,5% CMC-l\u00f6sning (30 minuter)<\/li>\n\n\n\n<li>Torkning och granulering<\/li>\n\n\n\n<li>Enaxlig pressning vid 30 MPa<\/li>\n\n\n\n<li>Sintring vid 1100\u20131250 \u00b0C i 3 timmar<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Slutprodukten \u00e4r ett por\u00f6st SiC-keramiskt b\u00e4rarmaterial med ett stabilt, sammanh\u00e4ngande porn\u00e4tverk.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Karakt\u00e4risering av mikrostruktur och prestanda<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Kontroll av porositet<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Porositeten regleras effektivt genom att justera halten av glasfrit och grafit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Porositet: ~30%\u201340%<\/li>\n\n\n\n<li>Enhetlig och sammanh\u00e4ngande porstruktur<\/li>\n\n\n\n<li>Stabil porstorleksf\u00f6rdelning<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Grafit brinner upp under sintringen och bildar sammanh\u00e4ngande \u00f6ppna kanaler som f\u00f6rb\u00e4ttrar permeabiliteten.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Mekanisk h\u00e5llfasthet<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Under optimerade f\u00f6rh\u00e5llanden (glasfrit 20%, grafit 15%, sintrad vid 1180 \u00b0C):<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u00f6jh\u00e5llfasthet: <strong>67,1 MPa<\/strong><\/li>\n\n\n\n<li>Balanserat f\u00f6rh\u00e5llande mellan h\u00e5llfasthet och porositet<\/li>\n\n\n\n<li>Stabil konstruktionsintegritet<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Glasfasen f\u00f6rb\u00e4ttrar partiklarnas sammanh\u00e5llning och \u00f6kar den strukturella stabiliteten.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Analys av fasernas sammans\u00e4ttning<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Resultaten fr\u00e5n r\u00f6ntgendiffraktionen visar f\u00f6ljande:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Huvudfas: SiC<\/li>\n\n\n\n<li>En mindre glasartad fas f\u00f6rekommer<\/li>\n\n\n\n<li>Inga destruktiva sekund\u00e4ra faser har observerats<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Detta bekr\u00e4ftar att sintring i flytande fas \u00e4r den dominerande mekanismen f\u00f6r f\u00f6rt\u00e4tningen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Mikrostruktur (SEM-observation)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mikrostrukturanalysen visar f\u00f6ljande:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>J\u00e4mn f\u00f6rdelning av SiC-partiklar<\/li>\n\n\n\n<li>Glasfasbindning mellan partiklar<\/li>\n\n\n\n<li>V\u00e4lutvecklade, sammankopplade porkanaler<\/li>\n\n\n\n<li>Genomsnittlig porstorlek: <strong>1,37 \u03bcm<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denna konstruktion \u00e4r idealisk f\u00f6r membranfiltrering.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Permeabilitet och vattenfl\u00f6de<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Det optimerade por\u00f6sa SiC-b\u00e4rmaterialet uppvisar f\u00f6ljande egenskaper:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Genomsnittlig porstorlek: 1,37 \u03bcm<\/li>\n\n\n\n<li>Fl\u00f6de av rent vatten: <strong>8075 L\/(m\u00b2\u00b7h\u00b7bar)<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Detta visar p\u00e5 utm\u00e4rkta permeabilitetsegenskaper f\u00f6r mikrofiltreringssystem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. Korrosionsbest\u00e4ndighet mot syror och alkalier<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Den kemiska stabiliteten utv\u00e4rderades under extrema f\u00f6rh\u00e5llanden:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sur milj\u00f6: pH = 0 (H\u2082SO\u2084, 80 \u00b0C)<\/li>\n\n\n\n<li>Alkaliskt milj\u00f6: pH = 14 (NaOH, 80 \u00b0C)<\/li>\n\n\n\n<li>Bl\u00f6tl\u00e4ggningstid: 24 timmar<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Resultat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bevarande av b\u00f6jh\u00e5llfasthet efter syrabehandling: <strong>47,4 MPa (29,41 TP3T-f\u00f6rlust)<\/strong><\/li>\n\n\n\n<li>Bevarande av b\u00f6jh\u00e5llfasthet efter alkalibehandling: <strong>46,7 MPa (f\u00f6rlust p\u00e5 30,41 TP3T)<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Provet med 20%-glasfrit uppvisar den b\u00e4sta kemiska stabiliteten totalt sett.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">De viktigaste f\u00f6rdelarna med por\u00f6sa SiC-keramiska b\u00e4rare<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2714 L\u00e5gtemperatursintring (1100\u20131250 \u00b0C)<\/li>\n\n\n\n<li>\u2714 H\u00f6g porositet (~36%)<\/li>\n\n\n\n<li>\u2714 H\u00f6g b\u00f6jh\u00e5llfasthet (67,1 MPa)<\/li>\n\n\n\n<li>\u2714 Extremt h\u00f6gt vattenfl\u00f6de (8075 L\/m\u00b2\u00b7h\u00b7bar)<\/li>\n\n\n\n<li>\u2714 Utm\u00e4rkt syra- och alkalibest\u00e4ndighet<\/li>\n\n\n\n<li>\u2714 Prisv\u00e4rda r\u00e5varor (glasfrit framst\u00e4lld av skiffer)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Industriella till\u00e4mpningar<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Por\u00f6sa SiC-keramiska b\u00e4rare anv\u00e4nds i stor utstr\u00e4ckning inom:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Membran f\u00f6r rening av industriellt avloppsvatten<\/li>\n\n\n\n<li>Gasfiltreringssystem f\u00f6r h\u00f6ga temperaturer<\/li>\n\n\n\n<li>Anl\u00e4ggningar f\u00f6r kemisk separation och rening<\/li>\n\n\n\n<li>St\u00f6dstrukturer f\u00f6r katalysatorer<\/li>\n\n\n\n<li>Precisionsmikrofiltreringsmembran<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Slutsats<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">I denna studie presenteras en kostnadseffektiv metod f\u00f6r framst\u00e4llning av por\u00f6sa SiC-keramiska b\u00e4rare med hj\u00e4lp av en zirkoniumglasfrit utvunnen ur skiffer som sintringshj\u00e4lpmedel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bland de viktigaste resultaten kan n\u00e4mnas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Betydande s\u00e4nkning av sintringstemperaturen<\/li>\n\n\n\n<li>F\u00f6rb\u00e4ttrad m\u00f6jlighet att styra porstrukturen<\/li>\n\n\n\n<li>F\u00f6rb\u00e4ttrade mekaniska egenskaper och permeabilitet<\/li>\n\n\n\n<li>H\u00f6g best\u00e4ndighet mot sura och alkaliska milj\u00f6er<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denna teknik erbjuder en lovande v\u00e4g fram\u00e5t f\u00f6r storskalig industriell till\u00e4mpning av SiC-baserade keramiska membranb\u00e4rare under kr\u00e4vande driftsf\u00f6rh\u00e5llanden.<\/p>","protected":false},"excerpt":{"rendered":"<p>Silicon Carbide (SiC) porous ceramic supports are widely used in advanced membrane filtration systems due to their excellent thermal stability, high mechanical strength, and superior chemical resistance. SiC-based ceramic materials are especially suitable for harsh environments such as high-temperature filtration, wastewater treatment, and chemical processing. However, conventional SiC ceramics require extremely high sintering temperatures (>2000\u00b0C), [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2389,"comment_status":"open","ping_status":"open","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":"","ast-disable-related-posts":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4],"tags":[753,749,751,756,748,750,755,752,754],"class_list":["post-2387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-acid-resistant-ceramic","tag-alkali-resistant-sic","tag-ceramic-filtration-membrane","tag-high-flux-ceramic-membrane","tag-low-temperature-sintering-sic","tag-porous-ceramic-materials","tag-porous-silicon-carbide-ceramic","tag-sic-ceramic-support","tag-silicon-carbide-membrane-support"],"_links":{"self":[{"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/posts\/2387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/comments?post=2387"}],"version-history":[{"count":1,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/posts\/2387\/revisions"}],"predecessor-version":[{"id":2390,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/posts\/2387\/revisions\/2390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/media\/2389"}],"wp:attachment":[{"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/media?parent=2387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/categories?post=2387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xkh-ceramics.com\/sv\/wp-json\/wp\/v2\/tags?post=2387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}