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烧结产物
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  sintering products
     ZnCr2O4-Cr2O3 ceramic sensor was studied by TG, DTG and XRD. It's chemical reaction mechanism and the phase of structure of the sintering products in temperature-programming from normal atmospheric temperature to 1000℃ were given.
     用TG; DTA及XRD等方法研究了ZnCr_2O_4-Cr2O3陶瓷传感材料,在常温~1000℃程序升温过程中的化学反应机理及烧结产物的物相结构.
短句来源
     Department of Materials and Engineering,Tsinghua University,Beijing 100084,ChinaZrO 2 -mullite multiphase refractories were prepared via a novel process route,where coarse mullite particles were bonded by reaction sintering products of ultrafine ZrSiO 4 and Al 2 O 3 powders.
     从先进陶瓷精细的制备技术出发 ,以超细ZrSiO4和Al2 O3的反应烧结产物为结合相 ,以粗粒莫来石为骨料 ,制备出ZrO2 -莫来石复合耐火材料。
短句来源
     (4)dissolution reactions of the sintering products of the high-alumina flyash and nepheline syenite;
     (4)高铝粉煤灰和霞石正长岩烧结产物的溶解反应;
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  “烧结产物”译为未确定词的双语例句
     It is found that the productions of BaPbO_3-Bi_2O_3 and BaPbO_3-Bi_2O_3-Ag powder were stable at 700℃-800℃.
     实验发现:700℃~800℃范围,BaPbO_3-Bi_2O_3系粉末和BaPbO_3-Bi_2O_3-Ag系粉末烧结产物组分相对稳定;
短句来源
     The results of Mg2Cu, MgCu2 and Cu phases were determined by XRD. The composite can absorb 2.55 % of hydrogen after 20 hydriding/dehydriding cycles.
     XRD分析表明烧结产物为Mg2Cu、MgCu2和Cu三相,经20次的吸放氢循环后,该多相材料的储氢量质量分数为2.55%;
     The particle size of LiFePO_4/C synthesized at 600°C is 100-200 nm (sample C), which is much smaller than that of LiFePO_4 sintered by solid-state reaction at 600℃, about 5-10 μm (sample A) and that of LiFePO_4+(carbon black) after milling, 1-5 μm (sample B).
     作为对比,采用固相反应合成了纯LiFePO_4(试样A)和物理混合的LiFePO_4+碳黑(试样B)粉体,二者在600℃烧结产物的颗粒尺寸分别为5-10μm和1~5μm。
短句来源
     The results of Mg2Cu, MgCu2 and Cu phases were determined by XRD. The composite can absorb 2.55 % of hydrogen after 20 hydriding/dehydriding cycles.
     XRD分析表明烧结产物为MgzCu、MgCu2和Cu三相,经20次的吸放氢循环后,该多相材料的储氢量质量分数为2.55%;
     Results showed that the proportion of Al、Ti、C powders affect the component and content of sinters directly, and when the content of carbon is high, there are some Al4C3 phases in the sinter except for the α (Al) and TiC phases;
     结果表明:Al、Ti、C粉末的配比,直接影响其烧结产物的组织成分,当C含量较高时,产物中除α(Al)和TiC相外还含有Al4C3相;
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  相似匹配句对
     The products were sintered at 500~600℃,3 h.
     产物烧结温度为500~600℃,时间为3h。
短句来源
     Smu.
     产物Smu.
短句来源
     Xray diffraction(XRD) was used to analyze the phase composition.
     通过X射线衍射(XRD)分析烧结产物的相组成。
短句来源
     Sintered Valve Seat insert
     烧结气门座圈
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     Competition is the product of market economy.
     竞争是市场经济的产物
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  sintering products
Sintering products molded by injecting ceramic and metal powders
      
The phase composition of the sintering products depends on the specimen porosity.
      
The homogeneity of the sintering products of titanium and iron can be approximately assessed by determining the amount of hydrogen absorbed by them during sintering.
      


The transformation processes during synthesis have been studied with in situ high temperature X—ray diffraction for YBa/2/Cu/3/O/9-x/oxide.Formation of superconducting phase with high zero—resistance temperature above 90K is developed from a series of transformation. On heating, a transitive cubic phase appears at 880℃ at first. It then transforms into tetragonal until 900℃. As extension of holding time at 960℃, tetragonal structure transforms into orthorhombic gradually. On cooling, a second orthorhombic transition...

The transformation processes during synthesis have been studied with in situ high temperature X—ray diffraction for YBa/2/Cu/3/O/9-x/oxide.Formation of superconducting phase with high zero—resistance temperature above 90K is developed from a series of transformation. On heating, a transitive cubic phase appears at 880℃ at first. It then transforms into tetragonal until 900℃. As extension of holding time at 960℃, tetragonal structure transforms into orthorhombic gradually. On cooling, a second orthorhombic transition occurs at 600℃. Zero—resistance superconductivity temperature Tc increases from 77.0 K to 91 K as holding time at 960℃ extends' from 2 hr. to 6 hr. followed by cooling at same condition. It shows that, superconductivity has been affected by two kinds of orthorhombic transition occured at high temperature and during cooling stage respectively.

利用高温X射线原位测定法直接测定配比为YBa_2Cu_3O_(9-x)的物料在升温、保温和降温的烧结过程中超导相结构的形成,四方→正交转变及其对烧结产物超导性能的影响.实验表明在升温到880℃时首先形成过渡的立方结构相,然后发展为层状四方钙钛矿结构.随着高温保持时间的延长,四方结构向正交结构转变.在降温至600℃附近,还发生第二次四考→正交转变.上述二次四方正交转变均对超导性能产生影响

The phase compositions of silicon nitride-rare-earth oxide ceramic (3Si3N4 +0.5La2O3+0. 5Pr6O11(mol. %) sintered in a pressure range from 5 to 7GPa, temperature from 600℃ to 1800℃ has been studied by X-ray diffraction and SEM observation. The observed results show that the phase forming rule at high p-T is different from that of Si3N4-Al2O3-AlN system. Under high pressure and below 1600℃ ,the sintering products are mixture of Si3N4 and the polymorphs of the rare-earth oxides. Si3N4 remains α-structure even when...

The phase compositions of silicon nitride-rare-earth oxide ceramic (3Si3N4 +0.5La2O3+0. 5Pr6O11(mol. %) sintered in a pressure range from 5 to 7GPa, temperature from 600℃ to 1800℃ has been studied by X-ray diffraction and SEM observation. The observed results show that the phase forming rule at high p-T is different from that of Si3N4-Al2O3-AlN system. Under high pressure and below 1600℃ ,the sintering products are mixture of Si3N4 and the polymorphs of the rare-earth oxides. Si3N4 remains α-structure even when certain amount of rare-earth oxides has dissolved in. When the temperature exceeds 1600℃ and pressure is above 6GPa, a new single phase belonging to orthorhombic system is formed with lattice parameters a =1. 2983nm,6=0. 8140nm,c=0. 4285nm.

在5~7GPa,600~1800℃的压力-温度范围内对组份为氮化硅-稀土氧化物微粉混合体(3Si_3N,+0.5La_2O_3+0.5Pr_6O_(11)(mol.%))的烧结产物进行了研究。所得结果表明其成相规律与Sialon体系在高温高压下烧结时不同。在直到5GPa的高压力下,α-Si_3N_4表现出相当高的稳定性,并不转变成β相。当烧结温度低于1600℃时,烧结体仍然由以α-Si_3N_4为基础的固溶体及稀土氧化物组成,而后者则表现出一系列相变化。当压力超过6GPa、温度高于1600℃时,物料烧结成一个新的单相高压结构ReSi_3O_2N_4。其衍射数据可以用一个正交点阵来拟合。其晶格参数为:α=1.2983nm,b=0.8140nm,c=0.4285nm。

ZnCr2O4-Cr2O3 ceramic sensor was studied by TG, DTG and XRD. It's chemical reaction mechanism and the phase of structure of the sintering products in temperature-programming from normal atmospheric temperature to 1000℃ were given.

用TG;DTA及XRD等方法研究了ZnCr_2O_4-Cr2O3陶瓷传感材料,在常温~1000℃程序升温过程中的化学反应机理及烧结产物的物相结构.

 
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