The effect of Li_2O and B_2O_3 doping on the crystallization phase composition of mold fluxes bearing rare earth oxide was investigated by lithofacies and energy chart analysis in scanning electron microscopy.
通过在结晶器保护渣中添加Li2O和B2O3作助熔剂,在实验室内模拟渣膜的形成条件,结合岩相和扫描电镜能谱分析,研究了Li2O3和B2O3对含稀土氧化物保护渣结晶矿物组成的影响。
Influence of little Li_2O and B_2O_3 on the crystallization phases of mold fluxes containing rare earth oxide was investigated by the methods of lithofacies and SEM enrage chart analysis in this paper.
本文通过在保护渣中添加少量Li_2O和B_2O_3,结合岩相和扫描电镜能谱分析,研究了其对含稀土氧化物保护渣结晶矿物组成的影响,得到如下结论:(1)稀土氧化物可以促进保护渣中枪晶石析出,抑制玻璃相形成,增大保护渣析晶率;(2)当稀土氧化物含量达到一定数值,在保护渣结晶矿物中可以形成稀土硅酸钙相,稀土氧化物继续增加,会有未溶稀土氧化物固态质点出现;(3)保护渣中加入少量B_2O_3和Li_2O,可以促进硅灰石析出并抑制枪晶石形成,也可以有效抑制高熔点稀土硅酸钙形成,防止渣膜形成过程中过早析出高熔点物相。
A mineral crystallizing in another mineral in the form of a branching or treelike mark.
树枝状矿物结晶一种矿物在另一种矿物中的晶体，这些晶体呈树枝状或树状
crystalline structure, minerals, etc
晶体的结构、 矿物等.
Basic Crystallography and Mineralogy
基础结晶学及矿物学
Principles of Crystallography and Mineralogy
基础结晶学与矿物学
Advanced Crystallography and Mineralogy
高等结晶学与矿物学
SINGLE CRYSTAL X-RAY DIFFRACTION CHARACTERISTICS OF MODULATED MINERAL CRYSTALS
调制结构矿物晶体的单晶X射线衍射特征
Teaching Reform on the Course of Crystallography and Mineralogy;
“结晶学及矿物学”课程教学改革探索
The terminology classification codes of geology and mineral resources The crystallography and mineralogy
GB/T9649.9-1998地质矿产术语分类代码结晶学及矿物学
The changes may include a recrystallization of the previous minerals or growth of entirely new minerals.
这种改变过程可以涉及到早先矿物的重结晶以及新矿物的生长。
a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone.
一种矿物（氟矽化铝），呈各色结晶状，用作宝石。
a complex black mineral occuring in pegmatites.
一种混合的黑色矿物，见于结晶花岗岩中。
Age determination data indicate episodic crystallization of uranium minerals.
年龄测定数据表明，铀矿物有着不同期的结晶。
The Study of Biomineral Characteristics of Freshwater Cultured Pearls in Zhuji of Zhejiang Province;
浙江诸暨淡水珍珠结晶层生物矿化特征的研究
The surface area of crystalline clay minerals is highly dependent on the extent of lattice expansion.
结晶粘土矿物的表面积主要依赖于晶格膨胀的程度。
A slender, needlelike part or structure, such as the spines or bristles of some plants and animals and the crystals of certain minerals.
针，刺针状物，如动物和植物上的脊椎或刺毛和某些矿物的结晶体
An orthorhombic mineral form of crystalline calcium carbonate, dimorphous with calcite.
霰石，文石结晶富钙碳化物的一种正交晶矿物，具有方解石的两种晶态
"aragonite: an orthorhombic mineral form of crystalline calcium carbonate, dimorphous with calcite."
霰石: 文石结晶富钙碳化物的一种正交晶矿物,具有方解石的两种晶态。
A concretion of mineral salts and organic matter deposited on the surface of the teeth.
牙石牙齿表面结晶形成的盐类矿物和有机物质的混合固体