Products
Categories
New products
New conductive material nickel nanowires NiNWs Hongwu Nickel nanowires have a wide range of potential applications in electronic materials, catalysis, polymers, magnetic storage ultra-high density recording materials, sensors and self-lubricating materials. more
Transparent Colloidal Ag Antibacterial Nano Silver Colloid Ag (Antibacterial Nano Silver Colloid) has been well known antibacterial, antiviral and antifungal properties are enhanced by small particle size and large surface area. more
Nano silica particles used in epoxy resin, superhydrophobic coating nano silica powder Nano silica particles, 20-30nm, 99.8% purity, widely used in exposy resin and superhydrophobic coating. more
Latest news
Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...
Si3N4 powder is available in beta phase and alpha phase, nano size and micron size, 99.9-99.99%.
product origin:
Chinaitem no.:
L559.shipping port:
guangzhou, shenzhencolor:
grey powderpayment:
T/T. PayPalSi3N4 alpha phase, si3n4 ceramic powders, si3n4 powder for bearings
Spec: alpha: 100-200nm. We could also supply beta phase si3n4 powder, 99.9-99.99%, any interested, feel free to contact us.
Application for si3n4 ceramic powders:
The longer stacking sequence results in the alpha phase having higher hardness than the Beta phase.
However, the alpha phase is chemically unstable compared with the beta phase. At high temperature
when a liquid phase is present, the alpha phase always transforms into the beta phase. Therefore,
beta si3n4 is the major form used in si3n4 ceramics.
One of the major applications of sintered silicon nitride is in automobile industry as a material
for engine parts. Those include, in diesel engines, glowplugs for faster start-up;
precombustion chambers (swirl chambers) for lower emissions, faster start-up
and lower noise; turbocharger for reduced engine lag and emissions.
In spark-ignition engines, silicon nitride is used for rocker arm pads for lower wear,
turbocharger for lower inertia and less engine lag, and in exhaust gas control valves for
increased acceleration.
Silicon nitride bearings are both full ceramic bearings and ceramic hybrid bearings with balls
in ceramics and races in steel. Silicon nitride ceramics have good shock resistance compared to
other ceramics. Therefore, ball bearings made of silicon nitride ceramic are used in performance
bearings.
Silicon nitride has long been used in
high-temperature applications. In particular, it was identified as one of the few monolithic
ceramic materials capable of surviving the severe thermal shock and thermal gradients generated
in hydrogen/oxygen rocket engines.
Previous :
Insulator Silicon Nitride Submicron Powder, Chemical Barrier Silicon NitrideNext :
High hardness 100nm,99.9% silicon nitride nano powdersEmail us with any questions or inquiries or use our contact data. We would be happy to answer your questions.
Copyright © 2010-2024 Hongwu International Group Ltd All Rights Reserved.
The professional team to service !