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glass phase
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  玻璃相
    The addition of B2O3 has a bigger affection on property of sintering bodies than Al2O3. With increasing B2O3 content, more glass phase are appeared, which change dramatically the structure of the porosity and strength of the ceramic body. The same trend has been observed as respect to the variation of porosity and strength with increasing Al2O3 content, but the variation is more smoothly.
    B_2O_3的引入较Al_2O_3对烧结体的性能影响大,随B_2O_3含量增加,烧结体中玻璃相明显增多,显气孔率和抗压强度变化幅度较大,而随Al_2O_3含量增加,烧结体的显气孔率和抗压强度均呈缓慢变化趋势;
短句来源
    The density and inner surface smooothness of ceramic layer were improved significantly by expanding the solidifying time with glass phase formed from Na 2B 4O 7 additive.
    Na2 B4 O7添加剂形成了玻璃相 ,延长了陶瓷的熔融期 ,可显著改善陶瓷致密度和内表面光整度 ;
短句来源
    The porosity and microstructure of ceramic layer were analysed. The results show that the porosity of ceramic layer consisted of FeAl 2O 4, Al 2O 3 and glass phase is 4.6%.
    对陶瓷层孔隙率和组织结构进行了分析 ,结果表明 :陶瓷层由大量铁铝尖晶石 (FeAl2 O4 ) ,少量刚玉 (Al2 O3)以及基体玻璃相组成 ,孔隙率为 4 .6%。
短句来源
    The glass phase between the SiC grain and reaction in fiber/matrix interface were the reasons that degraded the creep properties of the C f/SiC composites.
    在纤维周围和SiC颗粒晶界之间存在的玻璃相及纤维与基体的界面反应是Cf/SiC复合材料抗蠕变能力退化的主要原因
短句来源
    SiO 2 additive can conduce to formation of glass phase.
    SiO2 添加剂则有助于玻璃相的形成。
短句来源
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  “glass phase”译为未确定词的双语例句
    Quantitative Analysis and Computer Processing for Study of Glass Phase Separation with Powdered Specimen in TEM Technique
    玻璃分相粉末电镜法研究中的定量分析及计算机处理
短句来源
    The thermodynamics and kinetics procedures of erosion for O′-Sialon-BN in molten steel are investigated in this paper. The results showed that the main reasons for O′-Sialon-BN erosion are formation and solution of the low梞elting梡oint slag MnO-Si0_2-Al_2O_3 from chemical reaction taking place between [Mn] in molten steel and SiO_2 in glass phase among grains.
    研究了O′-Sialon-BN复合材料在钢液中侵蚀的热力学和动力学过程,结果表明,O′-Sialon-BN侵蚀的主要原因是钢液中的[Mn]与试样晶粒间少量玻璃相中的SiO_2发生化学反应生成MnO-SiO_2-Al_2O_3低熔点渣相并溶解;
短句来源
    Boron substitution mainly affects the calcination process of the precursor. Melted at about 450℃, boron oxide provides the precursor some liquid phase,which can sharply improve particle diffusion and transfer, and accelerate the synthesis of SrAl2O4. When cooling-down, most of liquid boron oxide turns into glass phase and stays beyond the lattice.
    硼掺杂对SrAl_2O_4:Eu~(2+),Dy~(3+)发光体合成的影响主要体现在促进烧结方面:掺硼前驱体煅烧过程中,硼在450℃以上形成熔融氧化硼,为Sr,Al等组分提供液相传质介质,从而加速单斜SrAl2O4晶相的合成。
短句来源
    In this case, the rare-earth elements have no effects on enhancing the stability of the metallic glass phase but enhance the heterogeneous nucleation and decrease the metallic glass forming ability and thermostability.
    当稀土元素以这种状态存在时,不但失去稳定非晶相的作用,而且促进异质形核,降低合金的非晶形成能力和热稳定性。
短句来源
    Cr ̄(3+) ions almost universally favoroctahedral coordination in crystalline phase,andNd ̄(3+) would concentrate in the residual glass phase。 The distribution of sites for Cr ̄(3+) ions will affect onthe spectroscopic characteristics in Cr and Nd dopedglassceramics.
    Cr ̄(3+)主要位于晶相格位中,Nd ̄(3+)则全部保留在剩余玻璃相中,Cr ̄(3+)的格位分布对光谱性能有很大的影响。
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  glass phase
Nontrivial interference develops between the subsystems when (for certain values of the parameters) they can only slide into the spin-glass phase.
      
It is found that a transition to the dipole-glass phase with chaotic, spontaneous unit-cell dipole moments, characterized by the Edwards-Anderson nonlocal parameter, precedes the transition to the ferroelectric phase.
      
The theory predicts the appearence of stable fluctuon states in both the mixed ferroelectric-dipole-glass phase (a dipole glass is the electric analog of a spin glass) and the dipole-glass state of disordered ferroelectrics.
      
While the former phase possesses only a trivial fixed point, this point become unstable in the latter phase, which may be interpreted as a spin glass phase.
      
Nematic LC to nematic glass phase transition in pores
      
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Small amount of rare-earth elements may have negative effects on the formation of some metallic glass alloys. The rare-earth elements may react with some atoms of the alloys to form compounds of high melting points or be absorbed on the surfaces of the heterogeneous catalysts in the alloys to activate the heterogeneous nucleation. In this case, the rare-earth elements have no effects on enhancing the stability of the metallic glass phase but enhance the heterogeneous nucleation and decrease the metallic...

Small amount of rare-earth elements may have negative effects on the formation of some metallic glass alloys. The rare-earth elements may react with some atoms of the alloys to form compounds of high melting points or be absorbed on the surfaces of the heterogeneous catalysts in the alloys to activate the heterogeneous nucleation. In this case, the rare-earth elements have no effects on enhancing the stability of the metallic glass phase but enhance the heterogeneous nucleation and decrease the metallic glass forming ability and thermostability.

本文发现微量稀土元素在某些合金中可不呈均匀固溶态分布,而与母合金某些原子反应生成高熔点化合物,或吸附于合金中异质核心表面改变其异质形核的活性。当稀土元素以这种状态存在时,不但失去稳定非晶相的作用,而且促进异质形核,降低合金的非晶形成能力和热稳定性。

In this study, the second phase droplets in glass phase separation have been determined byTEM technique in which powdered specimen is used. The dimension and size distribution of the newphase particles, on basis of the data measured from TEM micrographs, has been discussedquantitatively. According to the statistical method, the general expressions for determination of sizedistribution and mean radius of ellipsoidal or spheroidal particles in phase separated glass have beendeduced and programmed....

In this study, the second phase droplets in glass phase separation have been determined byTEM technique in which powdered specimen is used. The dimension and size distribution of the newphase particles, on basis of the data measured from TEM micrographs, has been discussedquantitatively. According to the statistical method, the general expressions for determination of sizedistribution and mean radius of ellipsoidal or spheroidal particles in phase separated glass have beendeduced and programmed. It is easy to process the data from TEM micrograph by computer calcula-tion and the result is quite satisfactory.

本文详细讨论了利用粉末电镜法研究玻璃分相中第二相颗粒在母体相中的存在关系。对电镜所反映出的分相玻璃中第二相粒子的尺度、分布等进行了分析。利用统计的方法并考虑了玻璃分相中会出现大小不同的国球及椭球形颗粒,导出了适用于第二相颗粒为国球或椭球时通用的计算实际颗粒平均粒度、分布等的新定量公式。全部公式的处理现已编制了程序并在计算机上通过。实际玻璃分相的有关数据可直接利用电镜照片上测得的数值经由计算机处理而得到,使用较为方便。

The transparent glass-ceramics in thesystem of B_2O_3-Al_2O_3-SiO_2 codoped by Cr ̄(3+) and Nd ̄(3+)were prepared by heat treatment in one step processaccording to the principle of phase segregation,andusing the analytically pure raw materials.The maincrystalline phase checked by XRD is a mullite solidsolution。Absorption,emission spectra and lifetimeof samples were measured.The distribution of sitesfor Cr ̄(3+) and Nd ̄(3+) in samples and the spectroscopiccharacteristics were analyzed and discussed bycontrasting...

The transparent glass-ceramics in thesystem of B_2O_3-Al_2O_3-SiO_2 codoped by Cr ̄(3+) and Nd ̄(3+)were prepared by heat treatment in one step processaccording to the principle of phase segregation,andusing the analytically pure raw materials.The maincrystalline phase checked by XRD is a mullite solidsolution。Absorption,emission spectra and lifetimeof samples were measured.The distribution of sitesfor Cr ̄(3+) and Nd ̄(3+) in samples and the spectroscopiccharacteristics were analyzed and discussed bycontrasting co-doped samples with singly-dopedones,The absorption spectra of co-doped sample isapproximately equal to the superimposition ofabsorption of singly-doped Cr ̄(3+) on that of Nd ̄(3+)sample。The intensity of emission at 700 nm for theco-doped sample by 647 nm excitation is only 65%ofthat of singly-doped Cr ̄(3+),and the intensity ofemission at 700 nm and 775 nm by 568 nm excitationare 87%and 70%respectively。 The Nd ̄(3+) lifetimeobserved at 1060nm is increased bv 45%due toradiation trapping in the co-doped sample comparedto the sample containing only Nd ̄(3+).This shows thatthere are radiative and nonradiative transfer of energyfron Cr ̄(3+) to Nd ̄(3+) and there is also energy transferfrom Cr ̄(3+) to Cr ̄(3+)。Cr ̄(3+) ions almost universally favoroctahedral coordination in crystalline phase,andNd ̄(3+) would concentrate in the residual glass phase。The distribution of sites for Cr ̄(3+) ions will affect onthe spectroscopic characteristics in Cr and Nd dopedglassceramics.

根据分相成核原理,通过一步热处理过程,制备了双掺杂B_2O_3→Al_2O_3→SiO_2系统透明玻璃陶瓷。XRD分析确定主晶相为莫来石固溶体;分别测定了材料的吸收光谱、发射光谱和荧光寿命,分析讨论了铬和钕格位分布及光谱特点。在双掺杂铬和钕玻璃陶瓷中存在较强的Cr ̄(3+)→Nd ̄(3+)的辐射能量传递和非辐射传递,同时也存在Cr ̄(3+)→Cr ̄(3+)的能量传递。Cr ̄(3+)主要位于晶相格位中,Nd ̄(3+)则全部保留在剩余玻璃相中,Cr ̄(3+)的格位分布对光谱性能有很大的影响。

 
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