{"id":12,"date":"2022-12-21T20:54:38","date_gmt":"2022-12-21T12:54:38","guid":{"rendered":"http:\/\/siliconcarbideceramic.net\/?p=12"},"modified":"2022-12-21T21:03:46","modified_gmt":"2022-12-21T13:03:46","slug":"rozne-rodzaje-ceramiki-z-weglika-krzemu","status":"publish","type":"post","link":"https:\/\/siliconcarbideceramic.net\/pl\/different-kind-silicon-carbide-ceramic\/","title":{"rendered":"r\u00f3\u017cne rodzaje ceramiki z w\u0119glika krzemu"},"content":{"rendered":"<p>Proces przygotowania w\u0119glika krzemu zwi\u0105zanego reakcyjnie jest stosunkowo prosty. Ten rodzaj ceramiki z w\u0119glika krzemu bezpo\u015brednio wykorzystuje w\u0119glik krzemu o okre\u015blonym rozk\u0142adzie wielko\u015bci cz\u0105stek, tworzy zarodki po zmieszaniu z w\u0119glem, a nast\u0119pnie naw\u0119gla w wysokiej temperaturze. Cz\u0119\u015b\u0107 krzemu reaguje z w\u0119glem, generuj\u0105c SiC, kt\u00f3ry \u0142\u0105czy si\u0119 z SIC w oryginalnym zarodku, aby osi\u0105gn\u0105\u0107 cel spiekania. Istniej\u0105 dwie metody naw\u0119glania: jedna polega na osi\u0105gni\u0119ciu temperatury topnienia krzemu, wygenerowaniu temperatury topnienia krzemu i wygenerowaniu pary krzemu, Cel spiekania osi\u0105ga si\u0119 poprzez infiltracj\u0119 pary krzemu do zarodka. Koszt produkcji spiekanego korpusu SiC przygotowanego w tym procesie jest niski. Jednak proces ten okre\u015bla resztkowy wolny krzem w spiekanym zarodku. Ta cz\u0119\u015b\u0107 krzemu powinna mie\u0107 wp\u0142yw na zastosowanie przysz\u0142ych produkt\u00f3w. Z jednej strony zmniejsza wytrzyma\u0142o\u015b\u0107 i odporno\u015b\u0107 na zu\u017cycie spiekanego korpusu, a z drugiej strony istnienie wolnego krzemu powoduje, \u017ce w\u0119glik krzemu jest odporny na kwasy.<\/p>\n<p>Bezci\u015bnieniowe spiekanie ceramiki z w\u0119glika krzemu: bezci\u015bnieniowe spiekanie w\u0119glika krzemu mo\u017cna podzieli\u0107 na spiekanie w fazie sta\u0142ej i spiekanie w fazie ciek\u0142ej. Czysto\u015b\u0107 spiekanego bezci\u015bnieniowo w\u0119glika krzemu jest wysoka, zawarto\u015b\u0107 w\u0119glika krzemu wynosi ponad 97%, odporno\u015b\u0107 na korozj\u0119 kwasow\u0105 i alkaliczn\u0105 jest znacznie lepsza ni\u017c w przypadku spiekanego reakcyjnie w\u0119glika krzemu i \u0142atwo jest osi\u0105gn\u0105\u0107 produkcj\u0119 seryjn\u0105.<\/p>\n<p>Spiekanie ceramiki z w\u0119glika krzemu metod\u0105 prasowania na gor\u0105co jest jednym z najskuteczniejszych sposob\u00f3w przygotowania ceramiki z w\u0119glika krzemu o wysokiej g\u0119sto\u015bci. W\u0142a\u015bciwo\u015bci prasowanego na gor\u0105co w\u0119glika krzemu s\u0105 na og\u00f3\u0142 wy\u017csze ni\u017c w\u0142a\u015bciwo\u015bci spiekanego reakcyjnie i bezci\u015bnieniowo spiekanego w\u0119glika krzemu, zw\u0142aszcza jego drobne ziarna, wysoka zwarto\u015b\u0107 oraz wysoka wytrzyma\u0142o\u015b\u0107 i twardo\u015b\u0107 produkt\u00f3w.<\/p>\n<p>Wysokotemperaturowe prasowanie izostatyczne na gor\u0105co ceramiki z w\u0119glika krzemu: Wysokotemperaturowe prasowanie izostatyczne na gor\u0105co to zaawansowany proces spiekania ceramiki. Proszek ceramiczny lub zarodek ceramiczny jest pakowany i umieszczany w wysokotemperaturowym urz\u0105dzeniu do prasowania izostatycznego na gor\u0105co, a nast\u0119pnie spiekany w g\u0119st\u0105 bry\u0142\u0119 w wysokiej temperaturze i pod wysokim ci\u015bnieniem. Charakteryzuje si\u0119 jednoczesnym i jednolitym ci\u015bnieniem, okre\u015blanym jako HIP.<\/p>\n<p>Rekrystalizowana ceramika z w\u0119glika krzemu: po wymieszaniu, uformowaniu i wysuszeniu surowce s\u0105 wypalane w izolowanym powietrzem piecu elektrycznym o wysokiej temperaturze 2300 ~ 2500 \u2103. Gdy temperatura przekroczy 2100 \u2103, w\u0119glik krzemu odparuje i skropli si\u0119, co spowoduje powstanie rekrystalizowanej ceramiki z w\u0119glika krzemu bez skurczu spiekania i struktury samowi\u0105\u017c\u0105cej.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-15 aligncenter\" src=\"http:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2022\/12\/silicon-carbide-ceramic.jpg\" alt=\"ceramika z w\u0119glika krzemu\" width=\"420\" height=\"254\" srcset=\"https:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2022\/12\/silicon-carbide-ceramic.jpg 420w, https:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2022\/12\/silicon-carbide-ceramic-300x181.jpg 300w\" sizes=\"auto, (max-width: 420px) 100vw, 420px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>The preparation process of reaction bonded silicon carbide is relatively simple. this kind silicon carbide ceramic directly uses silicon carbide [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"default","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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