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Hafnium Boride HfB2 Powder Used As Ultra-high Temperature Materials And Aerospace Materials

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Update time : 2019-12-31 10:13:34
Hafnium boride is a gray metallic luster crystal with a melting point of 3250℃ and a large electrical conductivity, chemical formula HfB2. At room temperature, hafnium boride does not react with almost all chemical reagents except HF. It is prepared by mixing and heating rhenium dioxide with boron carbide or boron oxide and carbon powder. HfB2 is used as high temperature resistant alloy.

Hafnium diboride has high melting point, high hardness, good electrical conductivity, thermal conductivity, and good neutron absorption performance. It has important applications in ultrahigh temperature materials, superhard materials, electrode materials, and neutron absorption materials.

With the development of materials technology, the application fields of hafnium diboride ceramics and composite materials are becoming more and more extensive. Obtaining low-cost, high-quality scandium diboride powder is an important research direction at home and abroad.

 
Hafnium boride is difficult to sinter, and in order to improve the sintering performance, ultra-fine powder must be obtained. Although the nanometer powder has excellent performance, it is very expensive, and it is difficult to disperse during the processing of raw materials, and the process is difficult. Therefore, the development of micron grade hafnium boride powder is receiving increasing attention.

According to the Intel research team, the probe of the storage hard disk sends data bit information to a ferroelectric film with a few nanometers area by sending instantaneous electrical pulses, the ferroelectric material is permanently polarized by the surrounding electric field to achieve data storage.

However, considering this ultra-high-speed data reading and writing speed and the large number of probes, the probe array of the memory needs to be moved quickly and frequently on the ferroelectric film. Such mechanical movement will cause the film surface to wear. , Will seriously reduce the reading accuracy of the probe.

To solve this problem, the researchers coated the probe with a layer of hafnium diboride (HfB2), the hafnium diboride coating not only reduces the wear speed of the memory, but also can effectively ensure that the read and write probe can move within 8 kilometers with super high read and write accuracy.

With so many probes and tiny electronic chips, Intel's new memory will have a terrible storage capacity-it can hold more than 1TB of data per square inch, but Intel has not announced how much the total memory will be.

 

Intel's research on electronic probe-based commercial storage technology has achieved a major breakthrough. The storage capacity of this technology will greatly exceed existing mechanical hard drives and SSD solid state drives.

“The hafnium boride ( HfB2 ) powder produced by us is an excellent ultra-high temperature ceramic material,” stated by Professor Luo, who is from Luoyang Tongrun Nano Technology Co.,Ltd, “ Our hafnium boride is with high hardness, high modulus, high thermal conductivity and high electrical conductivity, it is widely used in wear-resistant coatings, refractory materials, cutting tools and aerospace thermal protection systems.”

“The hafnium diboride (HfB2) powder supplied by Luoyang Tongrun has complete specifications, high purity, and uniform particle size distribution, also we can customize the particle size for customers. It is an ideal choice for your research and development of ultra-high temperature ceramic materials and new heat-resistant materials in the aerospace field.” Professor Luo summerize.