1. Crystallography at Material Basics ng Silicon Carbide
1.1 Polymorphism at Atomic Bonding sa SiC
(Silicon Carbide Ceramic Plate)
Silicon carbide (SiC) is a covalent ceramic substance made up of silicon and carbon atoms in a 1:1 stoichiometric ratio, identified by its exceptional polymorphism– tapos na 250 known polytypes– all sharing solid directional covalent bonds but varying in piling series of Si-C bilayers.
One of the most highly appropriate polytypes are 3C-SiC (cubic zinc blende framework), at ang mga hexagonal na uri 4H-SiC at 6H-SiC, each displaying subtle variations in bandgap, electron mobility, and thermal conductivity that affect their suitability for details applications.
Ang tigas ng Si– C bond, with a bond energy of roughly 318 kJ/mol, underpins SiC’s remarkable solidity (Mohs solidity ng 9– 9.5), mataas na kadahilanan ng pagkatunaw (~ 2700 ° C), and resistance to chemical destruction and thermal shock.
Sa mga ceramic plate, the polytype is commonly selected based upon the intended usage: 6H-SiC prevails in architectural applications as a result of its convenience of synthesis, while 4H-SiC controls in high-power electronics for its superior fee provider wheelchair.
The broad bandgap (2.9– 3.3 eV depende sa polytype) additionally makes SiC an exceptional electric insulator in its pure type, though it can be doped to function as a semiconductor in specialized digital tools.
1.2 Microstructure at Stage Purity sa Ceramic Plate
The performance of silicon carbide ceramic plates is critically depending on microstructural features such as grain size, kapal, homogeneity ng yugto, and the existence of additional stages or contaminations.
High-grade plates are usually fabricated from submicron or nanoscale SiC powders with sophisticated sintering methods, nagiging sanhi ng pinong butil, totally dense microstructures that maximize mechanical toughness and thermal conductivity.
Contaminations such as complimentary carbon, silica (SiO DALAWA), or sintering help like boron or light weight aluminum have to be thoroughly regulated, as they can form intergranular films that lower high-temperature stamina and oxidation resistance.
Recurring porosity, also at reduced degrees (
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 relative materials tulad ng Silicon Carbide Ceramic Plates. 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: silikon carbide plate,plato ng karbid,sheet ng silikon karbida
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