1. مواد سائنسي تحقيق ۽ ساخت جي سالميت
1.1 ڪرسٽل ڪيمسٽري ۽ بانڊنگ خاصيتون
(Silicon Carbide Crucibles)
Silicon carbide (سي سي) is a covalent ceramic made up of silicon and carbon atoms set up in a tetrahedral latticework, primarily in hexagonal (4ايڇ, 6ايڇ) or cubic (3سي) polytypes, each showing phenomenal atomic bond toughness.
The Si– سي بانڊ, with a bond energy of around 318 kJ/mol, is amongst the greatest in architectural porcelains, giving exceptional thermal security, firmness, and resistance to chemical assault.
This robust covalent network results in a material with a melting point going beyond 2700 ° سي(sublimes), making it one of the most refractory non-oxide ceramics readily available for high-temperature applications.
oxide porcelains جي برعڪس جيئن alumina, SiC keeps mechanical strength and creep resistance at temperatures over 1400 ° سي, where many metals and conventional ceramics begin to soften or deteriorate.
Its reduced coefficient of thermal growth (~ 4.0 × 10 ⁻⁶/ ڪي) integrated with high thermal conductivity (80– 120 W/(م · ڪي)) enables fast thermal cycling without devastating splitting, an essential attribute for crucible performance.
These inherent buildings come from the well balanced electronegativity and similar atomic sizes of silicon and carbon, which promote an extremely stable and largely packed crystal framework.
1.2 Microstructure and Mechanical Resilience
Silicon carbide crucibles are commonly made from sintered or reaction-bonded SiC powders, with microstructure playing a definitive duty in durability and thermal shock resistance.
Sintered SiC crucibles are created via solid-state or liquid-phase sintering at temperature levels above 2000 ° سي, often with boron or carbon additives to boost densification and grain limit cohesion.
This process generates a totally dense, fine-grained framework with minimal porosity (
ترقي يافته سيرامڪس آڪٽوبر تي ٺهرايو ويو 17, 2012, تحقيق ۽ ترقي لاءِ پرعزم هڪ اعليٰ ٽيڪنالاجي ڪمپني آهي, پيداوار, پروسيسنگ, سيلز ۽ ٽيڪنيڪل خدمتون سيرامڪ لاڳاپيل مواد ۽ شين جي. اسان جي پروڊڪٽس ۾ بورون ڪاربائڊ سيرامڪ پروڊڪٽس شامل آهن پر ان تائين محدود ناهي, بورون نائٽرائڊ سيرامڪ پراڊڪٽس, Silicon Carbide Ceramic مصنوعات, Silicon Nitride Ceramic مصنوعات, Zirconium ڊاء آڪسائيڊ سيرامڪ مصنوعات, وغيره. جيڪڏھن توھان دلچسپي وٺندا آھيو, مهرباني ڪري اسان سان رابطو ڪرڻ لاء آزاد محسوس ڪريو.
ٽيگ: Silicon Carbide Crucibles, Silicon Carbide Ceramic, Silicon Carbide Ceramic Crucibles
سڀئي مضمون ۽ تصويرون انٽرنيٽ تان ورتل آهن. جيڪڏهن ڪا ڪاپي رائيٽ جا مسئلا آهن, مھرباني ڪري اسان سان رابطو ڪريو وقت ۾ ختم ڪرڻ لاء.
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