主晶相

低成本莫来石主晶相陶瓷的研究

Study on Principal Crystalline Phase of Mullite Ceramics with Low Cost

羟基磷酸钙是人体骨骼的主要组成成分，本文制备的主晶相为羟基磷酸钙的生物活性玻璃陶瓷，综合了玻璃和陶瓷的优点，是一种理想的生物活性材料。

As the main components of human body skeleton , the prepared bioactive macor with hydroxyl calcium phosphate as its principal crystalline phase is an ideal bioactive material . It has the advantages of both glass and ceramic .

XRD表明主晶相为α-alumina。

XRD indicated the major crystal phase was α - alumina .

Zno陶瓷主晶相晶粒生长发育过程的研究

Study on the developing process of grains in ZnO ceramics

XRD分析主晶相为莫来石。

It was analyzed that main crystal phase was mullite in XRD .

结果显示，木炭为无定形的非晶碳材料，多孔SiC由主晶相？

The results showed that CB-template was amorphous carbon materials .

SEM结构分析可知，主晶相为非填满型钨青铜结构四方晶相。

The results of XRD and SEM show that the main crystal phase is the non-full-filled tetragonal tungsten bronze structure .

已用DSC分析该玻璃焊料，显示在510℃出现主晶相的熔化吸热峰，其开始熔化温度为445℃。

A main thermal absorption peak for melting at 510 ℃ with its beginning temperature 450 ℃ was revealed using DSC instrument .

结果表明，合成荧光粉的主晶相为六方纤锌矿结构的ZnO，并有少量残存的ZnS相存在。

The results showed that the phosphors were composed of ZnO with hexagonal wurtzite structure , however , few of cubic ZnS still remained .

XD饰面砖主晶相分析及莫来石化历程

Analyses of Main Crystal Phase of XD Tile and Process of Forming Mullite

TiO2晶核剂引入量不同将导致不同初晶相的析出，但随温度升高，最后的主晶相都是α-堇青石相。

Different content of TiO2 nucleator leads to different primal crystal phases , but at last , the major crystal phases are all α - cordierite phases .

70℃干燥的粉末，进行XRD分析，主晶相为HAP，但结晶性不好；

It was observed by XRD that the main crystal phase of powder dried at 70 ℃ was HAP , but the crystallinity was bad ;

XRD分析证明试样基质主晶相为MgO，次晶相为尖晶石；

The analysis of XRD and SEM showed that the periclase was the main crystal phase of the sample matrix , and the spinel was the subordination crystal phase ;

X-射线（XRD）分析表明，用此类粉体烧制的陶瓷材料其主晶相为La2Ti2O7，副相为Ba-La2Ti4O12。

Through X-ray diffraction analysis , the ceramic material obtained by the sintered nano powders has the chief crystal phrase of La_2Ti_2O_7 , and the second chief one of BaLa_2Ti_4O_ ( 12 ) .

测定了在不同核化温度下试样的抗弯强度，用DTA、XRD和SEM研究核化温度范围并鉴定玻璃陶瓷主晶相。

The flexural strength of the glass-ceramics at different nucleation temperature was measured . The range of nucleation temperature and crystallization phase identification were studied by using DTA , XRD and SEM .

结果表明：产物主晶相为βSiC，杂质相为Fe5Si3，其中，SiC多以片状、柱状、球状形式存在。

The results show that the main phase of the product is β SiC , and the main impurity is Fe_5Si_3 . The synthesized SiC mostly exists as flaky , columnar or globular grains .

晶粒尺寸在35～40nm之间，主晶相为锐钛型结构的TiO2出现较强较宽吸收峰。

Samples with main anatase and grain size in the range of 30 ~ 40 nm have a stronger absorbing peak .

涂层主要由TiO2（锐钛矿相及金红石相）相组成，随占空比的增大，涂层中锐钛矿相TiO2的相对含量减小，金红石相TiO2的相对含量增加，并成为主晶相。

The as-deposited coatings are mainly composed of anatase and rutile TiO2 . With the pulse duration increasing , the content of anatase decreases , while rutile increases and becomes the predominant phase .

在优化条件下制备的矿渣微晶泡沫玻璃由泡径2~3mm的气孔、晶体和玻璃相组成，XRD显示主晶相为透辉石；

The micro-crystallographic foamed glass prepared by optimal condition was composed of 2-3 ? mm pore , crystal and glass . XRD showed the main crystal was diopside , the apparent density of this material was 946 ?

Y2O3的加入并不影响微晶玻璃中主晶相的组成，但对其微观结构有明显影响；

Y2O3 has obvious influence on the microstructure , however , it doesn 't change the main crystalline phase of the glass-ceramics .

通过XRD、SEM及TEM等分析手段研究了主晶相煅烧温度、助烧剂用量及陶瓷烧结温度对BTZ基陶瓷微观结构及介电性能的影响。

The ef-fects of the amount of sintering aids and sintering temperature on the phase composition , microstructures and dielectric properties of ceramics were studied by means of XRD , SEM and TEM methods .

加入的ZrO2与CaO反应生成了CaZrO3，存在于主晶相的晶界中，为离子扩散提供了迁移的途径，从而促进了烧结。

ZrO_2 reacts with CaO and forms CaZrO_3 , and CaZrO_3 exists in the main grain boundary . CaZrO_3 provides a new migratory approach in diffusion , which promotes sintering .

结果表明，复合粉体中存在Zr、B、Al和O元素且它们分别以ZrB2和Al2O3为主要存在形式，ZrB2和Al2O3为复合粉体的主晶相。

The results show that Zr , B , Al and O elements exist in composite powders as ZrB_2 and Al_2O_3 . The ZrB_2 and Al_2O_3 are the primary phase in the composite powders .

通过晶体学计算，标定出BMT主晶相存在的两种结构，1：2有序六方超晶格结构和无序立方结构。

The two structures of BMT main phase , that is 1:2 ordered hexagonal superlattice and disordered cubic structure reflections , were marked in XRD patterns by crystallography .

XRD分析表明瓷球的主晶相为刚玉，次为莫来石，尖晶石、钙长石和磷石英。

XRD analysis showed that the main crystal phase of the refractory waste was corundum and the secondary was mullite and tridymite and the main phase of the ceramic ball was corundum , and the secondary was mullite spinel , anorthite and tridymite .

本文通过Sol-gel法在Al2O3基片上制得了TiO2纳米薄膜，经XRD分析，薄膜具有多晶结构，其主晶相为金红石。

This paper describes the preparation of TiO 2 film on Al 2O 3 substrates by the Sol-gel method . The results of XRD analysis show that the TiO 2 film has a poly-crystal structure and its primary crystal is rutile .

相组成分析表明，B2配方样品热震前后的主晶相均为a-SiC、红柱石、莫来石和方石英。

XRD analysis showed that both of the main phases in the samples of series B are a-SiC , andalusite , mullite and cristobalite before and after thermal shock .

复合材料的主晶相之间有长棒状架构弥散相和束状弥散相，在部分B4C晶粒内部出现了内晶结构。

A clubbed frame dispersion phase and a bunchy dispersion phase are among the main crystal boundaries . There are some inner crystal structures in the B_4C grain .

在Li2O－Al2O3－SiO2三元玻璃系统中，加入晶核剂TiO2、ZrO2，通过热处理，制备出了主晶相为β－石英固溶体的透明微晶玻璃。

Transparent glass ceramics are prepared by heated treatment and adding nuclei TiO 2 and ZrO 2 in the ternary system Li 2O Al 2O 3 SiO 2.The main crystalline of glasses is β SiO 2 solid state .

CdO-Sb2-WO3热敏丰导瓷，是一种在一定温区内具有线性阻温特性的热敏陶瓷元件，并由两种主晶相，锑酸镉及钨酸镉组成。

CdO-Sb_2O_3-WO_3semiconducting material is one type of thermistor ceramics , which consists primarily of two crystalline phases of cadmium antimoniate and cadmium wolframate .