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Polishing and Grinding Properties of Nano Silicon Carbide

Silicon carbide (HW-D507) is produced by smelting quartz sand, petroleum coke (or coal coke), and wood chips as raw materials through high temperature in resistance furnaces. Silicon carbide also exists in nature as a rare mineral— named as moissanite. In high technology refractory raw materials such as C, N, B and other non-oxide , silicon carbide is the most widely used and the most economical one.

 

β-SiC powder has properties such as high chemical stability, high hardness, high thermal conductivity, low thermal expansion coefficient and so on. Therefore, it has excellent performances such as anti-abrasion, high temperature resistance and thermal shock resistance. Silicon carbide can be made into abrasive powders or grinding heads for high-precision grinding and polishing of materials such as metals, ceramics, glass and plastics. Compared with traditional abrasive materials, SiC has high wear resistance, hardness and thermal stability, which can effectively improve processing accuracy and efficiency. In addition, it has excellent chemical resistance and high-temperature stability, so it has a wide range of application prospects in various fields.

 

SiC can be used to prepare polishing materials, which has a wide range of applications in mechanical engineering, electronic devices, optical devices and other fields. This polishing material has excellent properties such as high hardness, high wear resistance and high chemical stability, which can accomplish high quality polishing and grinding operations. At present, the main grinding and polishing materials is diamond in the market, and its price is tens or even hundreds of times of β-Sic. However, the grinding effect of β-Sic in many fields is no less than diamond. Compared with other abrasives of the same particle size, β-Sic has the highest processing efficiency and cost performance.

 

As polishing and grinding material, nano silicon carbide also has excellent low friction coefficient and excellent optical properties, which are widely used in microelectronic processing and optoelectronic device manufacturing. Nano silicon carbide polishing and grinding materials can achieve extremely high polishing capabilities, while controlling and reducing surface roughness and morphology, improving the surface quality of the material and the performance of the product.

 

In resin-based diamond tools, nano silicon carbide is an important additive that can effectively improve the wear resistance, cutting and polishing performance of resin-based diamond tools. Meanwhile, the small size and good dispersion of SiC can improve the processing performance of resin-based diamond tools by mixing well with resin-based materials. The process of nano SiC for manufacturing resin-based diamond tools is simple and easy. Firstly, nano SiC powder is mixed with resin powder in a predetermined ratio, and then heated and pressed through a mold, which can effectively eliminate the uneven distribution of diamond particles by using the uniform dispersion property of SiC nanoparticles, thus significantly improving the strength and hardness of the tools and extending their service life.

In addition to the manufacture of resin-based diamond tools, silicon carbide nanoparticles can also be used in manufacturing various abrasives and processing tools, such as grinding wheels, sandpaper, polishing materials, etc. The application prospect of nano silicon carbide is very broad. With the increasing tendency of various industries to use high performance and high quality processing tools and abrasives, nano silicon carbide will certainly produce more and more extensive applications in these fields.

In conclusion, nano silicon carbide powder has a wide application prospect as a high quality polishing material. With the continuous progress of science and technology, nano silicon carbide and resin-based diamond tools will be continuously improved and upgraded to a wider range of fields.

 

Hwnanomaterial is a professional manufacturer of nano precious metal powders and their oxides, with reliable and stable product quality and excellent price. Hongwu Nano supplies SiC nanopowder. Welcome to contact us for further info.

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The Importance of Nano ZrO2 on New Energy Hydrogen Production

Hydrogen energy is a kind of secondary energy with rich sources, green, low-carbon and wide application. It can help the large-scale consumption of renewable energy, realize large-scale peak regulation and cross-seasonal and cross-regional energy storage, and accelerate the low-carbon development in industry, construction, transportation and other fields.In 1970s, as an alternative energy source, hydrogen energy attracted people’s attention. At that time, the Middle East War triggered the global oil crisis. In order to get rid of the dependence on imported oil, the United States put forward the concept of “hydrogen economy” for the first time, believing that hydrogen could replace oil as the main energy source to support global transportation in the future. In the following decades, hydrogen energy has been developing. So far, the countries taking up 75% of the global economy have introduced hydrogen energy development policies to actively promote the development of hydrogen energy. Among various hydrogen production materials, nano ZrO2（HW-U702） has attracted the attention of scientists.

 

Nano ZrO2 has large specific surface area, high chemical inertness and catalytic activity, which makes ZrO2 Zirconium Oxide Nanopowder an ideal new energy catalyst for hydrogen production. First, nano ZrO2 promotes the decomposition reaction of water molecules by increasing the decomposition potential of water, producing hydrogen and oxygen. Secondly, nano ZrO2 can effectively inhibit the oxidation reaction in the process of hydrogen production, thus improving the production of hydrogen and the purity of the product.

 

Experiment data shows that nano ZrO2 catalyst can achieve efficient water decomposition reaction under mild conditions and produce high purity hydrogen gas. In addition, due to the abundant hydroxyl groups and oxygen vacancies on the surface of nano ZrO2, these functional groups will adsorb water molecules and decompose them into hydrogen and oxygen, and reduce the byproduct generation in the reaction.

 

The stability and lifetime of the nano ZrO2 catalysts are also of concern. Compared with traditional precious metal catalysts, nano ZrO2 catalyst is more stable and have a longer life. At the same time, the preparation cost of nano ZrO2 catalyst is lower, and the performance can be improved by adjusting the structure and form of nano ZrO2 catalyst, so as to further improve its application in new energy hydrogen production.

 

In general, nano ZrO2 has a wide application prospect in the field of new energy hydrogen production. With the increasing demand for hydrogen energy, we believe that nano ZrO2 catalysts will make greater progress in the future.

 

Hwnanomaterial is a professional manufacturer of nano precious metal powders and their oxides, with reliable and stable product quality and excellent price. Hongwu Nano supplies ZrO2 nanopowder. Welcome to contact us for further information.