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    THE DISTRIBUTION OF B_2O_3 IN FUSED CAST AZS REFRACTORIES AND EFFECT OF B_2O_3 ON VISCOSITY OF GLASS PHASE AT HIGH TEMPERATURE
    B_2O_3在熔铸AZS材料中的分布及其对材料玻璃相高温粘度的影响
    A STUDY OF GLASS PHASE TRANSFORMATION WITH D T A
    玻璃相变的DTA研究
    On the glass phase in the melting AZS products
    熔铸AZS制品中玻璃相研究之思考
    The results show that the longest crack initiation life is 6100 cycles for the alumina ceramics sintered at 1450℃,in which the structure is composed of 30% glass phase and 70% crystal phase.
    结果表明,1450℃烧成的试样的疲劳裂纹萌生寿命最高,达到6100周,此时体系内玻璃相含量约为30%,晶相含量约为70%。 其中玻璃相含量的高低是决定氧化铝陶瓷疲劳特性的主要因素。
    The different were interpreted by superplastic forming mechanism of silicon nitride ceramics. The existence of glass phase can be also proved in the grain boundary during superplastic deformation.
    而高温断口上却几乎不存在这样的晶粒,这种不同可以用氮化硅陶瓷材料的超塑性变形机理来解释,也可以证明超塑性变形过程中晶界玻璃相的存在。
    Fe2+ can promote crystallization of the glass ceramics,and Fe3+ mostly distributed in glass phase,it can enhance the network connections of glass.
    Fe2+在矿渣微晶玻璃体系中起到促进析晶的作用,而Fe3+主要分布在玻璃中,起到增强玻璃网络连接的作用。
    The distribution of impurities and CaO in M40 mullite-silica-rich glass composite was analyzed. A majority of impurities such as K2O,Na2O,MgO,Fe2O3 and TiO2 were found dissolved in glass-phase. However CaO was found concentrated and spotted in the crystalline phase in form of CaSiO3,which could not be dissolved by HF acid,but reacted with HF into CaF2.
    对M40莫来石-高硅氧玻璃复合材料的杂质及CaO分布进行了分析,发现K2O、Na2O、MgO、Fe2O3和TiO2杂质的大部分进入了玻璃相中,但CaO却以CaSiO3的形式呈点状集中分布于晶相中,HF酸不能将其溶解,而是与其反应生成CaF2。
    The influence of oxidizing degree on exudation temperature of glass phase of FCAZS refractories
    FCAZS制品氧化程序对玻璃相析出温度的影响
    (3) The proportion of Al2O3:SiO2of the mat glaze is near to 1:6, while thatof non-light glaze is near to 1:3.(4) Firing schedule is a key to formation of the mat glaze besides proper proposition, extremely high firing temperature may lead to early crystallization to dissolve again, which make the glass phase increasable.
    (3)亚光釉的Al_2O_3/SiO_2比靠近1/6这个界限,无光釉的则靠近1/3这个界限。
    Osborn's Li2O-Al2O3-SiO2 system glass phase diagram, a set of compositions of LAS system glass-ceramics doped P2O5;
    Osborn的系统相平衡图设计了一组Li_2O-Al_2O_3-SiO_2系统玻璃的配方。
    In this thesis, the research object is Li_2O-Al_2O_3-SiO_2 system glass-ceramics. According Li_2O-Al_2O_3-SiO_2 system glass phase diagram, a set of compositions are designed, and without the change of compositions La_2O_3 and other 4 rare earth are doped in the compositions for extra ingredient, then the glass-ceramics is produced by fusion.
    本课题以Li_2O-Al_2O_3-SiO_2系统微晶玻璃为研究对象,根据Li_2O-Al_2O_3-SiO_2系统三元相图设计了一组玻璃组成配方,并在基础组分不变的前提下,选择了La_2O_3等5种稀土氧化物采取外加法进行掺杂,利用熔融法制备出微晶玻璃。
    The additives of MnO2、NiO were facilitated forming glass phase and lowering sintering temperature of alumina.
    Fe_2O_3、MnO2、NiO的添加有助于降低氧化铝的烧结温度,促进烧结;
    HREMphotographs of dissolution of a-Si_3N_4 in glass phase, showing the characteristics of thedissolution, are presented.
    α-Si_3N_4溶解过程的高分辨率电子显微照片,显示了α-Si_3N_4 晶粒溶解的情形。
    With increase of K_2O addition,apparent increase inthe amount of glass phase,accompanied by corresponding decrease in mullite content,has been observed;
    K_2O含量增加时,玻璃相量显著增加,莫来石量却减少;
    In this paper, a study of glass phase transformation is made about the systems of LiO2 - A12O3-SiO2, PbO-ZnO-B2O3, and CaO-MgO-A12O3-SiO2, with DTA method (differential thermal analysis) .
    应用差热分析方法(DTA)研究Li_2O—Al_2O_3—SiO_2系统、PbO—ZnO—B_2O_3系统和CaO—MgO—Al_2O_3—SiO_2系统基础玻璃的相变,指出配合以TG、EGA、EGD以及XRD. SARX可以得到满意的结果。
    The results show that glasses in the system bays tow-phase separation structure, the droplet phase is rich in P~(5+), Ca~(2+), Mg~(2+) and the matrix phase is rich in Si~(4+), Al~(3+). Adding different amount of P_2O_5, the extent of glass phase separation is different, and it has marked influence on glass polymerization degree and crystallization process.
    实验表明,该系统中的玻璃具有二相分离结构,液滴相富含P~(5+)、Ca~(2+)、Mg~(2+)等离子,基底相富含Si~(4+)、Al~(3+)等离子,引入不同量的P_2O_5,玻璃分相的程度也不同,这对玻璃结构的聚合程度以及玻璃的晶化有显著影响。
    The results show that the interfaces between α-Al_2O_3, β'sialon and TiC are different, the glass phase exists obviously at the grain boundary or the "triple point" of grains.
    透射电镜观察表明α-Al_2O_3、β′-sialon、TiC三者之间具有不同特征的结合面;
    A study was made of metallizing mechanism of active Mo-Mn method technology to determine the condition of occurrence of MnO·Al_2O_3 phase in metallizing layer or interface. Results show that when the content of MnO is≥40% (wt). in glass phase the occurrence of galaxite is observed, when the content of MnO is≤30% (wt).
    本文研究了活化Mo-Mn法陶瓷金属化机理,确定了活化剂中MnO≥40%(wt)时金属化层中以及界面上存有MnO·Al_2O_3物相,而MnO≤30%时则难以发生。
    In order to investigate the crystallization behavior of Na2O-CaO-Al2O3-P2O5 glass with different amount of SiO2,glass phase-separation is studied with differetial thermal analysis and scanning electron microscopy.
    磷酸盐系统是生物活性微晶玻璃常用系统之一。 本文研究了Na2O-CaO-AI2O3-P2O5系统玻璃引入SiO2。
    The results indicate that the surface oxidation layer is constituted of cristobalite and a glass phase containig SiO2 with impurities such as A12O3 and CaO.
    结果表明,Si_3N_4陶瓷材料表面的氧化层,是由方石英相和含有Al_2O_3、CaO等杂质的SiO_2玻璃相所组成。
 

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