烧结

In the study of microwave sintering of BaTiO〓 PTC ceramics, when the applied microwave power are above than a certain value, the abnormal axial shrinkage of the sintered sample will occur, by the analysis of SEM and XRD, it is found the microstructure and phase are different with conventionally sintered sample, the reason for this phenomenon is due to orientational grain growth by the action of electric field in the microwave sintering process.

微波烧结BaTiO〓电子陶瓷时，当所加的微波功率超过一定值时，首次发现烧结样品出现轴向异常收缩现象，采用SEM、XRD等分析发现其微观结构与常规烧结有巨大的差异，这是BaTiO〓材料的晶粒在微波场中受电场力作用而发生的取向生长造成的。

Due to the loss of O and Si at reducing atmosphere, the amount of intergranular phase is lower than that of the sintering additives.

研究发现，由于烧结助剂中的O和Si在烧结过程还原气氛下的损失，使得烧结体中晶界相的含量明显低于烧结助剂的加入量。

It is found by the composite design test that the optimal MgO content in limonite sinter ranges from 2.5%to 4.5% and through the mineralogical and electron microprobe analyses,the mechanism of the influence of MSO on limonite sintering was revealed.

通过组合试验，找出了褐铁矿烧结MgO含量的最佳控制范围为2.5％～4.5％，通过对烧结矿的矿相分析及电子探针分析，找出了MgO影响褐铁矿烧结的内在原因。

Afterwards, according to the optimally condition of sinter-roasting between coal and Alumina, emphasis on sinter-roasting process between coal and Bauxite, from reaction coefficient and fixed carbon content in coal and Oxidate content in Bauxite, figure out that coal and Bauxite's mixture ratio which needed in the reaction was 71.85:100, however, at the experiment can found that if to the theoretical calculation result make up the charge, the coal and Bauxite basically can not close-burning.

然后，根据煤和氧化铝的最佳烧结条件，着重对煤和铝土矿的烧结工艺进行了研究，由试验反应配比系数和煤中固定碳的含量以及铝土矿中氧化物的含量，计算出反应所需的煤和铝土矿的配比为71。 85：100，在试验的研究中发现，严格按照理论计算所得的结果进行配料时，物料基本上不烧结。

Methods Specimens were made of VITA VMK 95 dentin porcelain and enamel porcelain and divided into 3 groups: Sintering times group（1,2,4,6,8 and 10 times）,sintering temperature group（910,920,930,940 and 950 ℃）,sintering vacuum group（95,65,35 and 0 kPa）.

方法采用VITA VMK 95体瓷和釉瓷瓷粉制作试件，分为不同烧结次数组（1、2、4、6、8、10次）、不同烧结温度组（910、920、930、940、950℃）、不同烧结真空度组（95、65、35、0 kPa）。

The powdering cause of sinters is analysed and improving measure is put forward in this paper.

烧结矿小粒级偏多一直是困扰南钢烧结生产及高炉生产的难题，本文对烧结矿粉化的原因进行了分析并提出了改善措施，对生产实践进行了总结。

Using of Excel to establish the design schedule of sintered ore mixture,the calculation consisted of basicity balance,composition,ore consumption,production cost and rateable cost of sintered ore,etc,can be done.

用Excel建立了烧结矿的计算表，可以完成烧结矿的碱度平衡、烧结矿成分、矿耗、用料成本、可比成本等的计算，从而提高了计算效率，使得原来用计算器难以进行的多方案比较计算变得简便。

Agglomeration ignites test result makes clear, temperature of microwave sirocco ignition nods igneous temperature under agglomeration of traditional iron ore far, in temperature of wind of 1.5 min of 8 kw of microwave output power, ignition, warm-up 350 ℃ fall can acquire the agglomeration ore deposit with good target.

烧结点火试验结果表明，微波热风点火温度远远低于传统铁矿烧结点火温度，在微波输出功率8 kw、点火1.5 min、预热风温度350℃下可获得指标良好的烧结矿。

The use of cheap raw materials, simple processes and simple equipment, while in the legal system for a Zirconia-based ceramic materials of valuable hardware, through the precursor decomposition by zirconium oxide ceramic micro base, and on this basis, the use of dry-pressed shaped and without pressure sinter prepared for the implications for sinter explore sintering processes.

本文使用价格低廉的原料、简单的工艺和简易的设备，固相法制备出氧化锆基陶瓷粉体的前驱体，通过前驱体分解得到氧化锆基陶瓷粉体，并在此基础上，利用干压成型和无压烧结对所制备的粉体进行烧结，探讨烧结工艺。

In order to attain the anticipatable sintering quality, the suitable sintering parameters must be provided fast and accurately when ore mix scheme is changed.

这给烧结操作提出了要求：矿石配比变动后能迅速、准确地给出合适的烧结工艺参数，以满足烧结矿产质量的要求。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。