查询词典 ceramic

The glass and crystalline glass-solders of Li2O-ZnO-SiO2 system were prepared by conventional melt technology. The various factors effecting on glass ceramics and glass were investigated,which include glass chemical composition and heat-treatment and so on. And then by means of XRD, DTA, IR and SEM, the structure and properties of the glass and glass-ceramic were studied. The coefficient of linear expansion , transform temperature and soft temperature wer measured. And then the factors that effect the mechanical strength of glass-ceramic were discussed and the fluxion property was determined and the crystallization course and mechanism were discussed, which can provide certain therial reference value for practice producing and glass seals to glass, ceramics and metal.

用高温熔融法制备了Li_2O-ZnO-SiO_2系统玻璃及其结晶型玻璃焊料，探讨了各种因素(包括玻璃组成、热处理制度等)对微晶玻璃的结构和性能的影响；利用X射线衍射分析、DTA、红外光谱分析以及扫描电镜等现代测试手段，对玻璃的结构与性能进行研究，测定了玻璃及微晶玻璃的线膨胀系数、转变温度和软化温度，同时对影响微晶玻璃的强度的因素进行了探讨，并对该体系玻璃的流散性进行了测定，对它的析晶过程和析晶机理进行探讨，为实际生产和与玻璃、陶瓷及金属封接提供了一定的理论参考价值。

A series of experiments were done to substantiate the feasibility of the different piezoelectric cochlea implants in vitro and in vivo . The unpoled ceramic had no piezoelectric characteristic and no ability to decrease the threshold, while the poled ceramic had obvious piezoelectric effect to recover the hearing. Based on these results, it can be affirmed that the piezoelectric cochlea implant can activate the nerve and decrease the threshold.

本研究通过未极化与极化的高灵敏性压电陶瓷的对比，从体外模拟实验中的声电响应曲线和动物体内植入实验的结果中得到：未极化的压电陶瓷没有压电响应，而极化后的压电陶瓷能够将声音信号转化为电信号，证实了压电陶瓷的压电特性的确可以刺激动物的听神经，从而降低听阈阈值。

A series of experiments were done to substantiate the feasibility of the different piezoelectric cochlea implants in vitro and in vivo. The unpoled ceramic had no piezoelectric characteristic and no ability to decrease the threshold, while the poled ceramic had obvious piezoelectric effect to rec

本研究通过未极化与极化的高灵敏性压电陶瓷的对比，从体外模拟实验中的声电响应曲线和动物体内植入实验的结果中得到：未极化的压电陶瓷没有压电响应，而极化后的压电陶瓷能够将声音信号转化为电信号，证实了压电陶瓷的压电特性的确可以刺激动物的听神经，从而降低听阈阈值。

Basing on the the best batch and the best parameters of heat treatment,we mainly investigates the quotiety and quality of deoxidized iron during the course of parent glass preparing according to the characteristic of batch; meanwhile, we discussed the effects of different kinds and contents alkali metal oxid on the glass-ceramic properties,and technics parameters of prepareing the glass-ceramic composite tube by centrifugal molding are also researched originally.

在获得镍渣—粉煤灰微晶玻璃的最佳配比以及最佳热处理制度的基础上，根据配料特点对玻璃熔制过程中铁的还原效果及还原质量进行了分析研究；着重探讨了不同类型、不同含量的碱金属氧化物对微晶玻璃性能的影响；同时也对微晶玻璃复合管的离心制备工艺进行了初步研究。

The series prducts of plane, relief, archaizing and polishing ceramic, and the crystallize glass mosaic products was used to make up a set wares with the other ceramic wall/floor tiles of famous brand.

平面、浮雕、仿古、抛光陶瓷系列产品，以及水晶玻璃马赛克，与各大名牌陶瓷墙地砖产品相配套，北上南下，出口海外，得到广大客户的认可。

The influences of the technological parameters of vacuum diffusion bonding of logging ceramic probe(Al2O3 ceramic to 45 steel) such as temperature,pressure and time on the shear strength of the bonging seam were studied by the orthogonal optimization test .

利用正交优化试验方法，研究了测井探头Al2O3陶瓷电极座与45钢基体真空扩散焊温度、压力和时间等工艺参数对焊缝抗剪强度的影响，并总结出相应的关系式，然后分析了温度、压力和时间等工艺参数对焊缝抗剪强度的独立影响和交互影响。

Heat sintered ZrO_2 ceramic does not react with any acids and bases except HF. It can't be coarsened by the traditional pretreatment process. Through a great deal of experiments, author found a kind of coarsened prescription which can corrode ZrO_2 ceramic, forming many holes and troughs on its surface.

高温烧结后的ZrO_2陶瓷的化学稳定性很高，除HF外不溶于任何酸碱，传统的粗化液对它没有粗化作用，笔者通过大量的实验，找到了ZrO_2陶瓷粗化液的配方，它能在ZrO_2表面腐蚀出大量均匀的微坑和凹槽。

The applied results of the ceramic membrane technology show that the maximum flow is obtained for the green tea extraction with the ceramic membrane of 0.2 m pore size, the solids and high-molecule substances are cut off to different degrees, the appropriate operating conditions for the process obtained are respectively 0.3 MPa for transmembrane pressure and 45 C-50 C for temperature, dialyzing the pore size of membrane with deiron water is of advantage for the recovery of flow flux in the later process, cleaning it with NaOH and NaClO can also recover the flow flux obviously after the operation.

对无机陶瓷膜技术的应用研究表明：选用0.2μm膜孔径的陶瓷膜在微滤过程对茶叶浸提液的膜通量最大，并对其固形物和大分子物质有不同程度的截流，合适的微滤操作条件为压力差为0.3MPa、温度为45℃—50℃，操作后期用水透析有利于膜通量的恢复，操作完成后用NaOH和NaClO清洗膜对膜的通量恢复较为明显。

The analytical characteristic and the regulation for the direct analysis of advanced ceramic in slurry sampling/fluorinating assisted electrothermal vaporization-ICP-AES were studied in detail; The possibilities of simultaneous determination for elements with different volatility were inspected also, a high sensitive and effective method for the direct analysis of ceramic powder has been described.

详细研究了悬浮体制样/氟化电热蒸发-ICP-AES直接分析先进陶瓷材料的分析性能及其规律性，考察了同时测定陶瓷材料中不同挥发性的痕量元素的可能性，提出了一条高灵敏、高效率的陶瓷材料直接分析新途径。

Thenthe rocker arms with ceramic gluts are compared with shank type rocker arms.4. To lower the cost of machining, a new process technique is proposed, namely,the ceramic gluts are ground by plain aluminum grinding wheels after theircoarse grinding with diamond grinding wheels.

为了降低陶瓷镶块的加工成本，研制了一种新的加工工艺，即在使用金刚石砂轮对陶瓷镶块进行粗磨和半精磨的基础上，采用普通氧化铝砂轮进行精磨。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。