1. Material Scientific Research at Structural Integrity
1.1 Crystal Chemistry and Bonding Characteristics
(Mga Crucibles ng Silicon Carbide)
Silicon carbide (SiC) is a covalent ceramic made up of silicon and carbon atoms set up in a tetrahedral latticework, primarily in hexagonal (4H, 6H) or cubic (3C) polytypes, each showing phenomenal atomic bond toughness.
The Si– C bond, 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 ° C(sublimes), making it one of the most refractory non-oxide ceramics readily available for high-temperature applications.
Unlike oxide porcelains such as alumina, SiC keeps mechanical strength and creep resistance at temperatures over 1400 ° C, where many metals and conventional ceramics begin to soften or deteriorate.
Its reduced coefficient of thermal growth (~ 4.0 × 10 ⁻⁶/ K) integrated with high thermal conductivity (80– 120 W/(m · K)) 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 ° C, 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 (
Advanced Ceramics na itinatag noong Oktubre 17, 2012, ay isang high-tech na negosyo na nakatuon sa pananaliksik at pagpapaunlad, produksyon, pagpoproseso, mga benta at teknikal na serbisyo ng mga ceramic na kamag-anak na materyales at produkto. Kasama sa aming mga produkto ngunit hindi limitado sa Boron Carbide Ceramic Products, Boron Nitride Ceramic Products, Mga Produktong Silicon Carbide Ceramic, Mga Produktong Silicon Nitride Ceramic, Zirconium Dioxide Ceramic Products, atbp. Kung interesado ka, mangyaring huwag mag-atubiling makipag-ugnay sa amin.
Mga tag: Mga Crucibles ng Silicon Carbide, Silicon Carbide Ceramic, Silicon Carbide Ceramic Crucibles
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