铌

The constitutional supercooling and internal growth striation in the SNLN crystals have been overcome and the optical homogeneity of the crystals have been improved by employing optimum growth co...

采用最佳的生长和工艺条件克服了铌酸锶钠锂晶体的组分过冷和内部生长条纹，提高了晶体的光学均匀性。

The optimal processing conditions are as follows: roasting temperature at 1 000℃, roasting time for 40 min, the ratio of NbH dosage to theoretic dosage at 1.1. The specific capacity of niobium suboxide of preparation by agate grind procedure is 69.50 mF·V·g-1, the loss is 11.25%, the leakage current is 1.8×10-4A·F-1·V-1, and the electrical properties are better than that of the national standard (GB/T 3136-1995) of FTa16-300 tantalum powder for capacitor.

用正交试验法及方差分析对玛瑙研磨工艺进行优化，得到制备低价铌氧化物最佳条件是：焙烧温度为1 000℃，焙烧时间为40 min， NbH用量与理论量之比为1.1，所制得的产物杂质含量低，比容为69.50mF·V·g-1，损耗为11.25%，漏电流为1.8×10-4A·F-1·V-1，其电性能指标高于FTa16—300电容器钽粉国家标准(GB/T 3136—1995)所规定的值。

This article described a new improved technology of Tantalate or niobate compound.

提供了一种经过改进的生产钽酸盐或铌酸盐化合物的新工艺。

Nano-sized silver sodium niobate tantalate was studied in this paper using wet-chemical method.

对液相法合成钽铌酸银钠的纳米粉体进行了研究。

Starting from the crystallographic data of lithium niobate and lithium tantalate crystals, structural characteristics and chemical bonding behaviors of both crystals are studied.

从铌酸锂和钽酸锂晶体的结晶学数据出发，分析其结构特征和组成化学键的结合情况。

Besides diffraction contrast images of domain boundaries, the HREM image of an a-a 90°domain boundary in potassium tantalate niobate has been obtained.

除了以上畴界的衍衬象外，我们也得到了钽铌酸钾晶体中a-a90°畴界的高分辨象。

The anion of tungstotantalate was synthesized for the first time as K_9TaW_(11)O_(40)·15H_2O by the reaction of soluble potassium tantalate and porous white tungstic acid in aqueous solution.

在五氧化二钽基体中加五氧化二铌配成标准溶液，与氟钽酸钾样品在相同条件下经系列处理后进行纸上色层分离，分离后与样品直接进行目视比色。

In this thesis, potassium niobate tantalate powder has been suceessfully synthesized by the effective hydrothermal method and solvothermal method; after that, high pyroelectric property 0-3 KTN/P composite material were prepared using solvent casting followed by compression moulding, taking tetragonal ferroelectric phase KTN as function phase, P as matrix phase, respectively.

本文采用高效的水热和溶剂热法合成了钽铌酸钾纳米粉体，随后以四方铁电相含量高的KTN粉体为功能相，以P为基体，用涂覆法制备出高热释电性能的0-3型KTN/P复合材料，并对粉体和复合材料的制备工艺和性能进行了相应的研究。

Tantalate or niobate compound ; precipitate ; homogeneous ; sintered ; acidwash ; waterwash

钽或铌酸盐化合物；沉淀；均相；烧结；酸洗；水洗

The aim of this thesis is to explore and develop promising niobate and tantalite materials with perovskite-like structure.

本论文的主要目的是探索新型类钙钛矿结构的铌、钽酸盐微波介质材料。

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。