Silicon nitride (Si3N4) is a compound composed of silicon and nitrogen elements. It is an important structural ceramic material.It is a super hard substance, lubricity in itself, and wear - resistant, for atomic crystals;Oxidation resistance at high temperature.And it can resist the cold and heat shock, heating in the air to more than 1000℃, rapid cooling and rapid heating, and will not break.
It is because of such excellent properties of Si3N4 ceramics that people often use it to manufacture mechanical components such as bearings, turbine blades, mechanical sealing rings and permanent molds.If the heating surface of engine parts is made of si3N4 ceramic which is resistant to high temperature and difficult to heat transfer, the quality of engine can be improved, fuel can be saved and thermal efficiency can be improved.China, the United States, Japan and other countries have developed this engine. Because of its high fracture toughness, heat resistant impact strong material, in recent years also often used in the machining industry tools and cutting tools. In addition, silicon nitride can be used in solar cells and ultra-high temperature gas turbines, aircraft engines, electric stoves, etc.
In China, silicon nitride technology has been studied since the mid-1980s.Mainly study the structure of weight loss most efficient silicon nitride materials - porous silicon nitride material, research on silicon nitride composites has just started, porous silicon nitride composite material design and the theory of material composition system design of experiment research rarely, is still at groping stage, affected by domestic and foreign relevant research data is less, this aspect of research in China has been in a relatively backward status, many research institutions and scholars to study focus on the military field, and other application research in the field of basic is blank.Research in this area needs to be further strengthened.The prediction of the dielectric constant of porous si3N4 ceramics and the law of its influence on their properties are not fully understood.
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high quality chemicals and Nano materials. The silicon nitride produced by our company has high purity, fine particle size and impurity content. Lower, please contact us if necessary.
