Silicon Nitride

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silicon nitride ceramic indusitrial machining parts Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: Silicon nitride ceramic is an inorganic material ceramic that does not shrink when sintered. Silicon nitride is very strong, especially hot pressed silicon nitride, which is one of the hardest substances in the world. It has high strength, low density and high temperature resistance. Si3N4 ceramic is a covalent bond compound. The basic structural unit is a [SiN4]...

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thermal shock resistance silicon nitride ceramic insulator Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: Silicon nitride ceramic is an inorganic material ceramic that does not shrink when sintered. Silicon nitride is very strong, especially hot pressed silicon nitride, which is one of the hardest substances in the world. It has high strength, low density and high temperature resistance. Si3N4 ceramic is a covalent bond compound. The basic structural unit is a...

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low density silicon nitride ceramic machinery products Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: Many of the properties of silicon nitride are attributed to this structure. Pure Si3N4 is 3119, with both α and β crystal structures, all of which are hexagonal crystals. The decomposition temperature is 1800 ° C in air and 1850 ° C in 110 MPa nitrogen. Si3N4 has a low thermal expansion coefficient and a high thermal conductivity, so its thermal shock...

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Si3N4 silicon nitride ceramic chuck plate strong strength Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: The automobile industry itself is a multidisciplinary industry that integrates all kinds of science and technology. China is an ancient civilization with a long history. It has made brilliant achievements in the history of ceramic development. With the progress of reform and opening up, one day, China also It is bound to be among the world's major auto...

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silicon nitride ceramic sintered Si3N4 parts distributor Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: As an excellent high-temperature engineering material, Si3N4 ceramic material has the most advantage in its application in high temperature fields. The future development direction of Si3N4 is: (1) to fully utilize and utilize the excellent characteristics of Si3N4 itself; (2) to develop some new flux during the sintering of Si3N4 powder, to study and...

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silicon nitride ceramic structural machining welding pin Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: Silicon oxide ceramics are made of silicon powder as a raw material, which is firstly formed into a desired shape by a conventional molding method, and preliminary nitriding is performed under nitrogen at a high temperature of 1200 ° C to react a part of the silicon powder with nitrogen to form silicon nitride. At this time, the entire body already has a...

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silicon nitride ceramic step shaft thread nut block Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: The failure of many ceramic materials applications often blames developers for not understanding the differences between ceramic powders and their lack of understanding of their properties. In general, high-quality Si3N4 powders should have high alpha content, uniform composition, low impurity and uniform distribution in ceramics, small particle size, narrow...

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silicon nitride ceramic locating pin corrosion resistant Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: The preparation technology of Si3N4 ceramics has developed rapidly in the past few years. The preparation process mainly concentrates on reaction sintering method, hot pressing sintering method, atmospheric pressure sintering method, gas pressure sintering method, etc. Due to different preparation processes, various types of silicon nitride ceramics have...

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heat radiating silicon nitride ceramic slice sheet board Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: Reaction sintering method (RS) The general molding method is adopted, in which the silicon powder is first pressed into a green body of a desired shape, and placed in a nitriding furnace by pre-nitriding (partial nitriding) sintering treatment, and the green body after pre-nitriding has a certain strength, and Perform various mechanical processing (such as...

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Si3N4 silicon nitride ceramic bar weilding dowel plunger Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: Hot press sintering (HPS) The Si3N4 powder and a small amount of additives (such as MgO, Al2O3, MgF2, Fe2O3, etc.) are hot pressed and sintered at a pressure of 1916 MPa or more and a temperature of 1600 °C or more. Some companies in the United Kingdom and the United States use hot-pressed sintered Si3N4 ceramics with strengths of up to 981 MPa. The...

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Si3N4 silicon nitride ceramic block brick customized Reputation depends on quality, quality comes from Hard! Machinable Glass Ceramic: The Si3N4 ceramic material is subjected to a high temperature pre-oxidation treatment at 1400-1500 °C to form a Si2N2O phase on the surface of the ceramic material, which can significantly improve the oxidation resistance and high-temperature strength of the Si3N4 ceramic. The mechanical properties of the Si3N4 ceramic produced by the hot press sintering method...

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high temperature boron nitride ceramic machinable parts Reputation depends on quality, quality comes from Hard! Boron Nitride Ceramic: The boron nitride usually produced is a graphite type structure, commonly known as white graphite. The other is a diamond type, which is similar to the principle that graphite is converted into diamond. Graphite-type boron nitride can be converted into diamond-type boron nitride at high temperature (1800 ° C) and high pressure (800 MPa). The boron nitride has a...

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heat dissipating insulating boron nitride ceramic parts Reputation depends on quality, quality comes from Hard! Boron Nitride Ceramic: CBN is usually a black, brown or dark red crystal with a sphalerite structure and good thermal conductivity. Hardness is second only to diamond and is a superhard material commonly used as tool material and abrasive. Boron nitride is chemically resistant and is not attacked by mineral acids and water. The boron-nitrogen bond is broken in the hot concentrated...

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dielectric boron nitride ceramic electronic components Reputation depends on quality, quality comes from Hard! Boron Nitride Ceramic: High temperature and high pressure synthesis In 1957, Wentorf first synthesized cubic BN. When the temperature is close to or higher than 1700 ° C and the lowest pressure is 11 ~ 12 GPa, the pure hexagonal boron nitride (HBN) is directly converted into a boron nitride (CBN). It was subsequently discovered that the use of a catalyst can greatly reduce the...

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metallurgical melting semiconductor boron nitride ceramics Reputation depends on quality, quality comes from Hard! 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...

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AIN intergrated circuit aluminum nitride ceramic substrate Reputation depends on quality, quality comes from Hard! Aluninum Nitride Ceramic: Aluminium Nitride Ceramic is a ceramic in which aluminum nitride (AIN) is the main phase. The AIN crystal is a covalently bonded compound with a [AIN4] tetrahedron as a structural unit, and has a wurtzite structure and is a hexagonal system. Chemical composition AI 65.81%, N 34.19%, specific gravity 3.261g/cm3, white or off-white, single crystal colorless...

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optical transmission sintering aluminum nitride ceramics Reputation depends on quality, quality comes from Hard! Aluninum Nitride Ceramic: Aluminum nitride has high hardness and exceeds traditional alumina. It is a new type of wear-resistant ceramic material, but it can only be used for severely worn parts due to its high cost. Using AIN ceramics for heat resistance, melt erosion and thermal shock resistance, GaAs crystal crucible, Al evaporating dish, magnetic fluid power generation device and...

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emery silicon carbide ceramic bearing plate nozzle Reputation depends on quality, quality comes from Hard! Silicon Carbide Ceramics Silicon carbide mainly has two crystal structures, namely cubic β-SiC and hexagonal-SiC. The basic structural unit of a silicon carbide crystal is a SiC and CSi tetrahedron interpenetrated with each other. The tetrahedrons form a planar layer together and form a three-dimensional structure by connecting the vertices to the next laminated tetrahedron. Hundreds of...

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inorganic sintered Si3N4 silicon nitride ceramic nail rod Reputation depends on quality, quality comes from Hard! Silicon Nitride Ceramic: In the improvement of the pressure of the sintering nitrogen atmosphere, the properties of the decomposition temperature of Si3N4 (usually decomposed from 1800 °C under N2 = 1 atm pressure) are utilized, and after atmospheric pressure sintering in the temperature range of 1700-1800 ° C, Gas pressure sintering in the temperature range of 1800-2000 °C. The...

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strength precision silicon nitride ceramic pin rod bar Reputation depends on quality, quality comes from Hard! Silicon Nitride Ceramic: In recent years, a large amount of research has been conducted on gas pressure sintering, and great progress has been made. The air pressure sintering silicon nitride is carried out at a temperature of about 2000 ° C under a pressure of 1 to 10 MPa. The high nitrogen pressure suppresses the pyrolysis of silicon nitride. Due to the high-temperature sintering, it...