英语翻译晶须是在人工控制下以单晶形式生长而成的具有较大长径比的单晶纤维材料,其直径小、强度接近于完整晶体的理论值,因而作

英语翻译
晶须是在人工控制下以单晶形式生长而成的具有较大长径比的单晶纤维材料,其直径小、强度接近于完整晶体的理论值,因而作为改性增强材料时显示出极佳的物理机械性能.随着现代科技的快速发展,高强度、高模量、耐高温的新型复合材料日益成为工业发展的需要,由于晶须具有优异的的物理机械性能,使它在材料增强增韧方面表现出极好的应用前景.本文首先系统介绍了纳米材料的基本内涵、特性和发展历史,以及表征手段等相关内容；对当前硼酸镁纳米材料的研究现状做了详细的介绍,然后对自己所展开的研究工作进行了充分的阐述.
以XRD分析手段进行表征,系统考察添加剂种类等工艺参数对最终产物的影响,确定最佳的工艺条件.最终结果表明以Na₂CO₃和Mg(NO₃)₂·6H₂O为反应物,分别以NaH₂PO₄、Na₂HPO₄·12H₂O、聚乙烯醇为添加剂,在添加剂的量分别为0%、0.5%、1%、1.5%、2%时,均可以获得较好的碳酸镁晶须产物.

Whisker is a single form of growth under the artificial control which has large length diameter ratio of single crystal fiber material, the diameter is small, the strength is close to the theoretical value, as modified materials exhibit excellent physical and mechanical properties. With the rapid development of modern science and technology, new composite materials with high strength, high modulus, high temperature resistance has become the needs of industrial development, the whisker has excellent physical mechanical properties, make it in the strengthened material exhibits excellent application prospects. This paper first introduces the basic connotation, the characteristics of nano materials and the development of history, and the methods of characterization and other related content; the current magnesium borate nano materials is introduced in detail, and then fully elaborated on his research work carried out. By means of XRD analysis were used to characterize the effect of different additives, system parameters on the final product, determined the optimum process conditions. The final results show that the Na2CO3 and Mg (NO3) 2 · 6H2O as reactant, respectively by NaH2PO4, Na2HPO4, 12H2O, polyvinyl alcohol as additive, the additive amount were 0%, 0.5%, 1%, 1.5%, 2%, can obtain magnesium carbonate whisker product better.