碳化硼

Hot-pressing micro-grain boron carbide materials are used in the control system of space navigation. So they are required to be extremely reliabile.

热压微晶碳化硼材料是用于宇航控制系统的材料，对其可靠性要求极高。

East Electricity Transformer Manufacturing Co., Ltd. are the Northeast's largest electric transformer suppliers, products widely used in metallurgy, boron carbide manufacturing and other fields.

东电变压器制造有限公司是东北地区最大的电炉变压器供应商，产品广泛应用在冶金、碳化硼制造等领域。

When the boron carbide specimens are polished, some of them have bright points on the surface. It is an abnormal phenomenon.

有些热压微晶碳化硼材料研磨面上有宏观可见的白色斑点，这是一种异常现象。

The results of first principles calculations show that the carbon content limit in boron carbide crystal is 53 at%, which is consistent with the experimental value.

更多 at％范围变化，第一性原理研究结果表明，碳化硼中含碳量可能的极限为53%，与实验观测结果一致。

The invention belongs to the nuclear technical field, in particular relating to a method for making a graphite absorption ball containing boron carbide.

本发明属于核技术领域，特别涉及一种制备含碳化硼的石墨吸收球的方法。

Ballistics experts in recent years have puzzled over a troubling loss of impact resistance in boron carbide, sometimes used in protective armour.

近几年来，导弹专家对用于保持性盔甲上的碳化硼保护层易碎的原因一直感到迷惑不解。

Following the choice of the materials, taking ZL205A alloy as the matrix and boron carbide as the reinforcement, the experiment was carried out in air by the stir-furnace.

经过广泛调研和充分的论证，本研究选取ZL205A合金作为基体，碳化硼颗粒作为增强体，采用搅拌复合的方法在空气状态下制备出用于实验的复合材料。

The reunion reason of boron carbide submicron powders in manufacturing process was analyzed, spray drying and airflow crash were adopted to deal with the materials.

对碳化硼超细微粉在干燥时的硬团聚现象进行了分析，并分别来用喷雾干燥和气流破碎两种方法对物料进行处理。

The results of DSC show that drastic exothermal reactions take place during the course of heating, which indicates that some new phases are formed.

运用热分析方法研究了一定量的钛粉、碳化硼粉与碳粉的混合粉末在加热过程中的反应情况。

To investigate the wear mode of the silicon nitride balls in lapping process, a series of abrasion tests were carried out on a ball-plate wear test apparatus with different loads, abrasive girt diameter, and slurry concentrations.

为掌握不同研磨条件下氮化硅(Si3N4)陶瓷球表面的磨损形式，在球－盘式磨损实验装置上，采用不同载荷及磨料粒度和浓度的碳化硼(B4C)磨料进行了磨损实验。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。