Yao Jian said that due to the superposition of domestic and foreign factors, the foreign trade situation in the second half of the year is not optimistic. Main reasons: First, the growth of foreign demand has slowed down. The sovereign debt crisis has caused many EU countries’ fiscal policies to shift from expansion to contraction, which will greatly limit EU consumption and investment growth. Emerging economies such as Brazil and India have also started to shrink monetary policy. With the gradual completion of the post-crisis inventory recovery process, the Chinese market will have limited space for further expansion in the future; second, the cost pressure on companies will increase significantly. In the first half of the year, the raw material costs of Chinese companies rose by about 20% to 30% year-on-year, and the labor cost was also rising. Third, trade frictions were still severe. In the first half of the year, China suffered a total of 38 trade remedy cases. In addition, the previous two-year high-accused case rulings continued to be enforced. The impact on exports for the next period of time cannot be underestimated.
Yao Jian said that in the face of the current complicated situation, in the second half of the year, the Ministry of Commerce will work with related departments to increase the pertinence and flexibility, promote the coordination of foreign trade, and reduce trade barriers.
Zirconium Diboride (ZrB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. Zirconium Diboride Tech Grade is an ultra high temperature ceramic (UHTC) with a melting point of 3246 °C. This along with its relatively low density of ~6.09 g/cm3 (measured density may be higher due to hafnium impurities) and good high temperature strength makes it a candidate for high temperature aerospace applications such as hypersonic flight or rocket propulsion systems. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and hafnium diboride.
Zirconium Diboride Powder parts are usually hot pressed (pressure applied to the heated powder) and then machined to shape. Sintering of ZrB2 is hindered by the material's covalent nature and presence of surface oxides which increase grain coarsening before densification during sintering. Pressureless Sodium Hexametaphosphate sintering of Zirconium Boride Raw Material is possible with sintering additives such as Boron Carbide and carbon which react Titanium Dioxide with the surface oxides to increase the driving force for sintering but mechanical properties are degraded compared to hot pressed ZrB2.
Zirconium Diboride,Zirconium Diboride Powder,Zirconium Diboride Tech Grade,Zirconium Boride Raw Material
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