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- leucite trachyte 白榴粗面岩
- The conversion ratio of potassic feldspar to leucite in alkali trachyte is mainly controlled by temperature when it is less than1100℃ and by the cooling velocity of temperature when it is over1100℃. 富钾粗面岩中钾长石向白榴石的转化率在1100℃前主要受焙烧温度控制；在1100℃后则受其后的降温速度控制。
- The breccia includes serpentite, gabbro, basaltic trachyandesite, trachyte, and silicalite. 火山角砾岩的角砾由蛇纹石化橄榄岩（蛇纹岩）、辉长岩、玄武质粗面安山岩、粗面岩和硅质岩组成。
- While the trace elements content in the trachyte can be up to over 200 times richer than that. 粗面岩属于碱性系列，痕量元素丰度普遍较高，可以达到原始地幔丰度的200倍以上。
- The volcanic rocks of the Lower Es3 in Oulituozi region are mainly volcaniclastic rock,basalt and trachyte. 欧利坨子地区沙三下亚段火山岩类型以火山碎屑岩为主,次为玄武岩及粗面岩。
- By adjusting the content of additives and changing heating conditions, the influential factors in leucite synthesis were explored. 采用固相反应法，通过调整添加剂的含量，制定不同的热处理制度探讨了白榴石合成中的影响因素。
- Research included leucite preparation and ceramic frit preparation matching leucite.Solid phase reaction was used to prepare leucite. 课题研究包括白榴石晶体的制备和与白榴石相匹配的烤瓷熔块的制备。
- Trachyte reservoir of Liaohe Oilfield are fairly developed,but its homogeneity is poor,thus adding difficulties to the evaluation. 辽河油田粗面岩油气藏比较发育,但储集层的均质性较差,增加了对其评价的难度。
- With the Erhai fault zone as a boundary, they are mainly basic and ultrabasic rocks in the east side, trachyte in the west side. 以洱海断裂带为界 ,东侧主要为基性、超基性岩 ,西侧主要为粗面岩。
- Two ways were used to prepare PFM powders, one was to add different proportions of leucite to the ceramic frit, and the other was to grain-process the ceramic frit. 采用在烤瓷熔块中加入不同比例的白榴石和对烤瓷熔块进行晶化处理两种途径制备金属烤瓷粉。
- Based on coring, testing and logging data, logging interpretation model for formation parameters and seismic inversion are applied for the trachyte reservoir in Oulitouzi area. 志丹地区侏罗系、三叠系储层是低孔、低渗储层 ,压实程度高 ,地质解释模型与测井解释模型拟合复杂。
- This will causedifferent ascent velocities and then different diffusion rates of volatile in magma. The change of the pH2o in magmas during their ascenting triggers the changes of the stability of phlologopite,leucite and sanidine. 从而引起岩浆在上升过程中所含挥发分发生散失的程度有差异，造成PH2o的变化，而这正是控制金云母、透长石及白榴石稳定性及变化的主要物理参数。
- The relationship between preparation processes and leucite purity and crystal size as well as the effect of them on the performace of dental porcelain fused to metal were analysized. 分析了制备工艺与白榴石纯度、粒度的关系;以及对牙科烤瓷材料性能的影响.
- By using the methods of XRD and physical-chemical analysis ,the results have revealed the changes in components and textures and mechanisms of alkali trachyte at different temperatures when roasting. 应用X衍射、化学分析结果和物理化学分析方法，研究富钾粗面岩在不同温度下焙烧所发生的矿物成分和结构变化及其变化机理。
- Volcanic rocks in Chabaoma formation should be belonged to high pressure type trachyt,formed by the magma beneath thickened crust, the exact extrusive era could be mid-late period of Miocene. 查保马组火山岩应属于在陆壳增厚的背景下,加厚陆壳底部产生的粗面岩岩浆上涌形成的粗面岩,时代应为中新世中晚期。
- Application of Feldspar in Synthesis of Leucite 钾长石在白榴石合成中的应用
- LEUCITE NEPHELINE AND NEPHELINE SYENITE 白榴石;霞石及霞石正长岩
- Keywords Dental ceramics;Leucite;Dental material; 牙科陶瓷;白榴石;牙科材料;
- Keywords leucite;dental ceramics;studying status; 白榴石;牙科陶瓷;研究现状;
- Keywords Heat treatment Opaque porcelain Leucite; 关键词热处理;遮色瓷;白榴石;
