Yearly Archives - 2019

06 6月

Research and application of aluminum nitride and aluminum nitride ceramics

Aluminum nitride (AlN) is a kind of integrated high performance new ceramic material, has excellent thermal conductivity, a reliable electrical insulation, low dielectric constant and dielectric loss, non-toxic and match the silicon thermal expansion coefficient, and a series of excellent features, is considered to be * * a high degree of the semiconductor substrate and the ideal of the electronics packaging materials, wide attention by the researchers at home and abroad. In theory, the thermal conductivity of AlN is [...]

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31 5月

Thermal and optical properties of nanometer tin oxide

In terms of thermal properties, nano SnO2 can be attributed to an ATO raw material, and its heat insulation mechanism: The SnO2 crystal has a regular tetrahedral rutile structure, and the anion coordination number is 6∶3. Each tin ion is adjacent to 6 oxygen ions, and each oxygen ion is adjacent to 3 tin ions. After antimony doped ions in SnO2, occupy the position of the lattice Sn4 +, forming a positive charge one price center SbSn and an extra [...]

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21 5月

How to analyze the fiber strength of potassium titanate whisker

In recent years, potassium titanate whisker achieved breakthrough on the manufacturing cost, combined with the diverse, more and more attention, the performance is very excellent after wear test proves that the potassium titanate whisker reinforced material products even after wear test its surface finish and no big change, potassium titanate whisker was originally by NASA as Saturn rocket nozzle of insulation material development. In view of the rocket launch a flushing high temperature and high pressure air flow, filling [...]

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05 5月

To introduce the preparation of strontium titanate

Research progress of preparation methods of strontium titanate at present, the main preparation methods of strontium titanate are sol thermal method. Sol-sol-whether in metallic materials, or in organic and inorganic non-metallic materials, adding appropriate amount of strontium and its compounds can change some of its properties and even make it have special functions, so it has the name of metal monosodium glutamate. Strontium titanate (SrT iO 3) is one of the important strontium compounds. Strontium titanate has the advantages of [...]

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30 4月

Select bismuth titanate specific work introduction

Bil2Ti020 material was prepared by solution hydrothermal method. Crystals with graded structure such as micron ball, micron flower, nanorod and nanowire were synthesized. For controllable morphology, this paper analyzes the reaction temperature, reaction time, pH and PVA concentration on Bil2Ti020 morphology and structure, the influence of the reaction parameters of the material controllable morphology, proposed the nanoparticles a micron spend a growth mechanism of nanowires – micro ball and focuses on the material of optical and light catalytic properties. [...]

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25 3月

Vanadium dioxide VO2 powder technology and research status

The intelligent temperature control coating is a coating that transmits infrared light at low temperatures and reflects infrared light at high temperatures. The research status of VO2 and its doped powder and the intelligent temperature control coating based on VO2 powder are introduced. Proposed its future development trend. Key words: VO2 powder; phase change performance; intelligent temperature control coating When the sun shines on the surface of the object, the object mainly absorbs the near-infrared light energy to increase its surface [...]

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10 1月

Method for the preparation of strontium titanate

Research progress of preparation methods of strontium titanate at present, the main preparation methods of strontium titanate are sol thermal method. Sol-sol-whether in metallic materials, or in organic and inorganic non-metallic materials, adding appropriate amount of strontium and its compounds can change some of its properties and even make it have special functions, so it has the name of metal monosodium glutamate. Strontium titanate (SrT iO 3) is one of the important strontium compounds. Strontium titanate has the advantages [...]

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