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Introduction to hydrogen energy and fuel cells

Fuel cells can be divided into proton exchange membrane fuel cells (PEMFC) and direct methanol fuel cells according to the electrolyte properties and fuel used (DMFC), phosphoric acid fuel cell (PA...
Effect of sintering on properties of zirconia ceramics

Effect of sintering on properties of zirconia ceramics As a kind of ceramic material, zirconium has high strength, high hardness, good wear resistance, acid and alkali resistance, high temperature ...
How to clean PECVD graphite boat？| VET Energy

1. Acknowledgement before cleaning 1) When the PECVD graphite boat/carrier is used more than 100 to 150 times, the operator needs to check the coating condition in time. If there is an abnormal coa...
Two electric vacuum pumps were shipped to America
The scale of China's graphite market is showing growth, the natural graphite market has declined, and the industry's output value has expanded

Graphite is a non-metallic mineral resource with a variety of special properties such as high temperature resistance, electrical conductivity, thermal conductivity, lubrication, chemical stability,...
Three major techniques for SiC crystal growth

As shown in Fig. 3, there are three dominant techniques aiming to provide SiC single crystal with high quality and effciency: liquid phase epitaxy (LPE), physical vapor transport (PVT), and high-te...

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