查询词典 sic

In the view of above-mentioned reasons, two new technologies were researched and developed by changing the distribution of heating units, the construction of furnace and relevant processing parameters in this paper. One of the technologies is multi-core heat technology for fabricating polytype industry SiC products, another is reactant heat without core for synthesizing SiC with high performance and added value at low cost by common industry raw materials.

基于上述背景，本文通过改变发热体形式、炉体结构和相应的工艺，研究开发了多炉芯发热法制备多品种工业SiC产品和无炉芯反应料发热法以普通工业原料低成本制备高性能和附加值的SiC产品的技术。

High-resolution transmission electron microscopy shows that the substrate and epi-layer are well-arranged 6H-SiC and 3C-SiC structures,respectively,with a smooth transition and no polytype in the junction.

高分辨透射电镜结果显示，衬底与外延层分别为排列整齐的6H-SiC结构和3C-SiC结构，两者过渡平坦、界面处无其他晶型。

A SiC-AlN solid solution whisker with the polytype of 2H was firstly produced with the solid solution SiC powders at 1900℃ in the atmosphere of Ar.

并以此SiC固溶体粉为原料，在1900℃氩气环境下首次制备出了2H型SiC-AlN固溶体晶须。

The joining of graphite, ceramic SiC and C_f/SiC composites via preceramic silicone resin at high temperature (800~1400℃) was studied.

对先驱体硅树脂高温(800～1400℃)转化陶瓷接头连接石墨、陶瓷SiC及Cf/SiC复合材料进行了研究，着重对硅树脂固化裂解过程、硅树脂溶液浓度及裂解温度对连接性能的影响进行了探讨。

The reasonable adjustment of additive constituents of prefabricate SiC loaf can not only guarantee the steel infiltration, but also prevent the decomposition of SiC particles.

通过调整SiC预制体的添加物组配，可以既保证钢液的浸渗，又防止SiC粒子的分解。

In this paper, the oxidizing properties of SiC/SiC composite by Chemical Vapor Infiltration were investigated.

对用CVI法制备的SiC/SiC复合材料的氧化性能进行了研究。

From the analysis of theory and technique character of ion-implantation and the energies, the implant range and straggle of nitrogen ions in 4H-SiC calculated by TRIM, the method to calculate the channel depth of 4H-SiC MESFET is present based on the energy diagram's analysis of implanted layer.

通过研究离子注入的理论和工艺特性，以及蒙特卡洛分析软件TRIM对氮离子注入4H-SiC的能量、深度和偏差等参数的分析，在注入层的能带理论分析的基础上，提出了计算离子注入4H-SiC MESFET器件的沟道深度的方法，以及离子注入工艺参数，包括能量、剂量的确定方法。

Using pin on disk tribometer, the influence of volume fraction and particle size of SiC on dry friction and wear properties of the SiC/Al composites were investigated.

采用无压浸渗法制备不同碳化硅粒度和体积分数的SiC/Al复合材料，利用销-盘摩擦磨损试验机考察了碳化硅的粒度和体积分数等对SiC/Al复合材料干摩擦磨损性能的影响，采用扫描电子显微镜观察磨损表面形貌并分析其磨损机理。

Unlike the LSD,the SIC-LSD Hamiltonian is not invariant undera unitary transformation among the occupied orbitals,which must be determined self-consistentlyfrom minimizing the SIC-LSD total energy.

与LSD近似不同，SIC-LSD近似的哈密顿量没有占据态的幺正变换不变性，单粒子态由SIC-LSD近似下的总能量极小决定。

Results show that the single-layer SiC coating with B2O3 is compacter than those with MgO and Al2O3. Different phases exist in the three different single-layer SiC coating.

SEM、EDS和XRD等结果分析表明，含有B2O3的单层SiC涂层最为致密，其次为Al2O3和MgO；并且这三种不同的单层SiC涂层中含有不同的相。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了