查询词典 sic

The influences of the Si removal time on the final phase composition and mechanic properties of the formed biomorphic Si/SiC ceramic composite were analyzed.

结果表明，最终产物由主晶相β-SiC和少量Si组成，控制高温排硅时间可以得到孔隙率为16%~32%的多孔Si/SiC生态陶瓷，可调控其产物的相组成和力学性能。

Aligned Silicate-2 zeolite membrane was synthesized by in situ seeding and secondary crystal growth in microchannels of biomorphic porous SiC ceramics support.

榉木经高温热解转化为生物碳模板，通过液相渗硅反应工艺制备了保持木材微观结构的多孔SiC陶瓷。

The results show that the best sintering process for SiC preform is 1100℃, 8 h in vacuum, by which the open porosity is 99.6% and the preform strength reaches 0.57 MPa. The thermo-physical characteristics of 57% SiCp/Al composites produced by this technique are as follows: the relative density is 98.7%; the thermal expansion coefficient is 7.5×10-6 ℃-1 which almost matches those of GaAs and BeO; the thermal conductivity is 1.65×105 W/K, which corresponds to that of Cu(15%)/W and decuples that of Kovar alloy; the density is close to that of aluminum and less than that of one fifth of Cu/W.

结果表明：经1 100 ℃真空烧结8 h的SiC预成形坯开孔率可以达到99.6%，抗压强度为0.57 MPa；所制备的57％SiCp/Al复合材料相对密度为98.7％，热膨胀系数为7.5×10-6 ℃-1，与GaAs、 BeO的接近，热导率为1.65×105 W/K，与传统Cu(15%)/W相当，是柯伐合金的10倍，在密度上接近Al，不到Cu/W的1/5。

With both sides of the invention patent "sic fiber high-frequency heating device" and "graphite fiber manufacturing technology and special equipment for the new" intellectual property.

拥有两面项发明专利《sic纤维高频加热装置》和《石墨化纤维制造新工艺及其专用设备》知识产权。

The fire clay consists of aggregate 72-76%, adhesive 24-28% and promoter, the aggregate contains Al2O3, SiO2, SiC, C, Si and other components and the adhesive consists of asphalt, phenolic resin, furan resin and tar.

本发明耐火泥是由骨料72―76％、和粘结剂24―28％和促进剂所组成。其中骨料含Al2O360―80％，SiO215―20％，SiC0―8％，C2―5％，Si1―3％，和其它组分，粘结剂是由沥青10―20％，酚醛树脂10―70％，呋喃树脂10―40％和焦油0―30％所组成。

The flow-field around a hemisphere and a flat-nosed cylinder in the shock tube is simulated numerically by using non-equilibrium Navier-Stokes equations with an air chemical model of 5 species 17 reactions, and the catalytic rate constant of surface materials such as Pt, SIC:, Ni and a flight vehicle materials is determined by using the heat transfer rate of testing in the shock tube and the distribution of heat transfer rate along with the catalytic rate constants.

用5组分17个化学反应Durm-Kang空气化学模型和轴对称热化学非平衡Navier-Stokes方程，对激波管中球头和平头圆柱模型绕流流场进行了数值模拟，给出了驻点热流随催化速率常数变化的分布，并根据激波管实验测量的热流值确定了表面材料Pt、SiO2、Ni和某种飞船材料的催化速率常数，建立了数值分析高焓流动边界层催化特性的软件。

The influence of surfactant on the properties of electroplated Ni-SiC composite coating was studied by means of electron probe microanalysis, electrochemical analysis, and friction and wear test.

表面活性剂能改善复合镀层的性能，过去对离子型和非离子型表面活性剂影响复合镀层性能的研究报道不多。

The oxidation and hydrolysis of SiC-Si occurs in the solution during friction test.

SiC-Si在溶液中摩擦时发生氧化水解反应。

The better properties were achieved when brazing Al 2 O 3/SiC w ceramic to stainless steel in argon gas was with Ag-Cu-Ti3 brazing filler metal.

在氩气保护下，用Ag-Cu-Ti3钎料对陶瓷与不锈钢进行钎焊可以获得比较好的效果。

In chapter 3,the density-functional theory for the half-filled Hubbard model and extended Hubbard model in one and two dimensions has been studied withinthe SIC-LSD approximation.

第三章将总能的SIC用Wannier函数作为局域单粒子态表示，研究了一维和二维半满的Hubbard模型和扩展的Hubbard模型的密度泛函理论。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。