If you are looking for high-quality products, please feel free to contact us and send an inquiry, email: brad@ihpa.net

Boron carbide is also known as black Diamond. It has a molecular formula of B4C. The powder is typically grayish. It is one the three hardest materials known (the other two being diamond and cubic boronnitride). It can be found in many industrial applications, including tank armor, protective body armor, and even some automobiles. It has a Mohs toughness of 9.3. A large number of tests were conducted by the team of Academician Huang Boyun of Central South University’s National Laboratory of Powder Metallurgy to develop a new ceramic coating and composite materials that are resistant to ablation of 3000 degC. This discovery could pave a way for the creation of hypersonic cars.

According to Professor Xiong Xiang of the Institute of Powder Metallurgy of Central South University's Institute of Powder Metallurgy (IPM), hypersonic flight is defined as a flight speed that is at least 6120 km/h, or 5 times faster than the sound. With such high speeds, a flight from Beijing to New York could be completed in just 2 hours if the aircraft's key structural components can handle severe air friction as well as hot air impacts of 2000-3000 deg. C. . Central South University has developed ceramic composites and coatings for ultra-high temperatures that provide better protection of the above components. The world's very first synthesis of a single phase ultra-high temperature ceramic made from boron carbide quaternary, is said to be the coating that is a perfect "fusion", with carbon-carbon material. In the field of developing new materials, mixed materials are studied in binary compound system. The successful application of materials quaternary to hypersonic will be greatly facilitated by its development.

The novel ceramic coated modified carbon/carbon material is composed by a single-phase carbide of zirconium (quarterary), titanium, carbon, and boron. It has a stable carbide-crystal structure. Infiltration of a multiceramic phase is the main method for obtaining it. The ultra high temperature ceramic combines the high-temperature adaptability of carbides and the anti-oxidation property of borides. This makes the coatings, composites, and other materials exhibit superior ablation and thermal shock resistance. The ceramic oxide can withstand an ultra-high temperature of 3000 degC and has low oxygen diffusion rates, self-healing properties at high temperatures, dense and gradient ceramic coatings, all of which make the ceramic a lighter material. Ablation loss rate.

"Because the ultra-high-temperature ceramic combines carbide's high temperature adaptability with boride's anti-oxidation property, the coatings and materials above have superior ablation and thermal shock resistance. This is essential for hypersonic cars. Xiong Xiang said that the promising candidates were for the parts.

Nature Communications published a report on the 15th of June describing the results of research conducted by team members. The State Key Laboratory of Powder Metallurgy of Central South University was the first unit to complete the thesis. Zeng Yi and Professor Xiong Xiang are the first correspondents. First author is the doctor. The University of Manchester (UK), a partner unit of the University of Manchester, UK characterized the material and performed an analysis.

After publication, the article attracted a great deal of interest from the foreign media and academic circles. In the three days immediately following publication, this article was downloaded over 5,000-times, while other articles were only downloaded 300 to 900 times. The Daily Mail in Britain, The Economist in the United States and Public Machinery (Russia) have all covered the research. . According to the reviewer in Nature Newsletter: "The above results will ignite academic excitement and interest in applying quaternary materials in the field of hypersonics, because it represents a very promising system."

The team began working with Professor Chang Xiang in 2002 with support from National 863,973 and National Natural Science Foundation. A scholar from Yangtze River was leading the project. Find a new ultra high temperature ceramic coating that has excellent oxidation resistance, and resistance to ablation. During the research, the material systems screened, from the initial silica carbide to strontium carbide (and then titanium carbide), zirconium carbonate, zirconium boreide, tantalum carbide and other hundreds of high temperature materials, involved almost all existing ultra-high-temperature ceramics and composites. It has taken 15 years to achieve the breakthrough of developing new ablation-resistant coatings in 3000 degC ultra high temperature environment.

Tech Co., Ltd., a professional Boride powder manufacturer, has over 12 years of experience in chemical product development and research. You can contact us by sending an inquiry if you are interested in high quality Boride powder.

Inquiry us