metallurgical melting semiconductor boron nitride ceramics
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Boron Nitride Ceramic:
Chemical vapor phase synthesis
In 1979, Sokolowski successfully used pulse plasma technology to prepare a boron nitride (CBN) film at low temperature and low pressure. The equipment used is simple and the process is easy to implement, so it is rapidly developed. A variety of vapor deposition methods have emerged. Traditionally it has mainly referred to thermal chemical vapor deposition. The experimental apparatus generally consists of a heat-resistant quartz tube and a heating device, and the substrate can be heated by a heating furnace (hot wall CVD) or by high frequency induction heating (cold wall CVD). The reaction gas is decomposed on the surface of the high-temperature substrate, and a chemical reaction is deposited to form a film. The reaction gas is BCl3 or a mixed gas of B2H4 and NH3.
It has good heat resistance, thermal stability, thermal conductivity, high temperature dielectric strength, and is an ideal heat dissipating material and high temperature insulating material. Boron nitride has good chemical stability and is resistant to most of the molten metal. It also has good self-lubricating properties. Boron nitride products have low hardness and can be machined with an accuracy of 1/100 mm.
Boron nitride can be used in the manufacture of high-temperature containers for metallurgical melting, semiconductor heat-dissipating insulation parts, high-temperature bearings, thermowells, and glass forming dies.
Shenzhen Hard Precision Ceramic CO.,Ltd founded in 2007, located in Shenzhen of China. We are a company that integrates development, design, molding, sintering, production and sales of precision ceramic products. After 10 years of development, we have cooperated with more than 2000 customers and 60 universities; Our factory covers an area of 2000 square meters, 50 employees, and annual production value of nearly 20 million. We have a higher visibility and better reputation in the same industry.Our products include ceramic rods, tubes, plates, blocks and precision parts for industrial. We have all-line high precision equipments from ceramic forming, sintering to precision machining. Hope for a wide range of sincere cooperation with customers at home and abroad.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Show time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad.
7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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