What is CeO2?Nanocrystalline cerium(IV) oxide (CeO2) powders were prepared by heating solutions of cerium(IV) salts in the presence of urea under hydrothermal conditions at 120° to 180°C. The effects of urea concentration and hydrothermal treatment t...…
The matrix material PA2200, with an average particle size of 60μm and a white appearance, was obtained from EOS GmbH in Germany. Moreover, the mixing ratio of new and old powder is 1:1. Filler additives, Hollow glass powder was surface treated with s...…
Selective laser sintering (SLS) to prepare composites by adding filler into the polymer effectively saves costs and reinforces the sintered parts. This article investigated the fabrication of PA2200 composites filled with different volume fractions o...…
Silicon nitride is taken into consideration an extremely important design ceramic. At heats, silicon nitride displays excellent mechanical properties, consisting of reduced thickness, high flexing toughness, high elastic modulus, crack toughness, hig...…
It's well-known for its outstanding lubrication capabilities. tungsten disulfide powder This material is widely used in the aerospace industry. It has a COF of 0.03, and is highly resistant to heat. This makes it ideal to use in engines for airpla...…
The European Commission has submitted to member states a new draft of sanctions against Russia, including an oil embargo. Some member states that rely heavily on Russian energy sought exemptions. Western media reported that the European Commission d…
1. Sintering characteristics of activated alumina powder The sintering process refers to the transfer of substances between the particles when the surface tension is not neglected. The purpose is to cause adhesion between the powders, there…
In order to achieve global sustainable development can be used not only as energy storage technology but also as carbon dioxide gas recovery system. Since the beginning of this research ten years ago lithium carbon dioxide batteries have att…
We showed that using carbon-free cathodes such as ATO in Li-O2 cells can effectively prevent the formation of carbonates on the cathode surface (as generally observed with carbon cathodes). Instead, in addition to the common discharge product Li2O2, ...…
DC/DC converter is a device that transforms a voltage value into another voltage value in the direct current circuit.…
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