查询词典 aluminothermic

Purity control in producing metallic strontium using vacuum aluminothermic reduction was analysed by thermodynamic calculation.

对真空铝热还原法制备高纯金属锶的纯度控制进行了热力学分析；探讨了锶、钡和钙的临界还原温度、蒸气压等热力学参数差异，并制定了制备高纯金属锶的工艺。

The result of thermodynamic calculation shows that the reduced products of V_2O_5 carbothermic reduction is the carbide of vanadium,the system of silicothermic reduction should add CaO, aluminothermic reduction can reach a reduc- tion rate of 99%,the reduction ability of Al is more effective than that of C and Si.

热力学计算结果表明，V_2O_5碳热还原产物是V的碳化物；硅热还原体系中需配加CaO；铝热还原可以得到99％的还原率，Al的还原能力比C和Si都要强。

TiN -Al2O3 composite material was prepared by aluminothermic reduction of TiO2 in coke bed from mixtures of TiO2 powder and metal AI powder.

以金属铝粉和钛白粉为原料，在匣钵中埋炭保护气氛下采用铝热还原氮化法制备了TiN-Al2O3复合材料。

Al2O3-TiC/Fe-Al composite was synthesized by in-situ carbothermic and aluminothermic reduction using natural ilmenite as raw material.

以天然钛铁矿为主要原料，采用SHS技术，通过铝热、碳热还原法合成了Al2O3-TiC/Fe-Al金属间化合物/陶瓷基复合材料。

Using metal Al and TiO2 powders as starting materials TiN/Al2O3 composite ceramics were prepared by aluminothermic reduction of TiO2 in coke bed and a flowing nitrogen stream.

以金属铝粉和钛白粉为原料，在流动氮气和匣钵埋碳保护气氛下采用铝热还原氮化法制备了TiN/刚玉复合陶瓷。

SiO vapor is an important precursor for both carbonthermic and aluminothermic reactions. The rate-controlling step is the reaction in which SiO〓 is reduced to form SiO .

研究发现，无论碳热还原或铝热还原，SiO气体是重要的中间产物，SiO〓还原为SiO的反应是整个还原氮化过程的速度控制步骤。

Al〓O〓-TiC and Al〓O〓-TiB〓 ceramic composites were synthesized using TiO〓, Al and graphite and TiO〓, Al, and amorphous B〓O〓 powders via aluminothermic reactions, respectively.

采用TiO〓、Al和石墨原料合成了Al〓O〓-TiC复相陶瓷，研究了压坯压力、试样直径、原料中铝粉和石墨颗粒、TiO〓的晶型、过量铝和Al〓O〓稀释剂等对燃烧合成过程及产物微观结构的影响。

Sialon powders have been synthesized by carbonthermic and aluminothermic reduction and nitridation from natural Kaolin. The cost is 2030 times lower than that forming pure β′-Sialon from artificial materials.

首次以天然高岭土为原料，通过碳热还原氮化和铝热还原氮化两种途径制备β'-Sialon粉体，它比用合成原料制备的纯β'-Sialon成本下降20－30倍。

Aluminothermic reactive synthesis of Al2O3-TiC nanocomposite powders from a mixture of TiO2, Al, and C powders induced by high-energy ball milling and its consolidation through spark plasma sintering were investigated.

以TiO2、Al、C为原料，首先采用高能球磨引导铝热反应合成了Al2O3-TiC 纳米复合粉体，然后采用放电等离子体烧结纳米复合粉体制备了Al2O3-TiC复合材料。

Steven Jones, a PhD physicist formerly of Brigham Young University, says of the 史蒂文琼斯,博士学位的物理学家,以前的杨百翰大学,说的 composition 组成:: [8][ 8 ]Given the mix of trace metals present in anomalously high concentrations in the WTC dust such as zinc, copper and manganese and barium, the formation of iron-aluminum-rich spherules, I have argued that significant aluminothermic reactions occurred, with likely ingredients to include powders of aluminum, iron oxide, copper oxide, zinc nitrate, sulfur, and potassium permanganate.

由于组合的微量金属元素，目前在异常高浓度在世贸中心灰尘如锌，铜，锰，钡，可以形成铁富铝球粒的，我认为，重要的铝热反应的发生，可能与成分，包括粉末铝，氧化铁，氧化铜，硝酸锌，硫，和高锰酸钾。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。