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开口气孔率
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  open porosity
     The type,amount and adding process of the additives were determined. The obtained material is of the bending strength 51. 3Mpa,thermal conductivity 0. 86w/mk(800℃),thermal expansion coefficent (RT-1000%)1.22×10-6/℃ ,bulk density 3. 32g/m3 and open porosity 3. 7% respectively.
     研制的钛酸铝材料性能达到σ_弯:51.3MPa、λ:0.86w/m·k(800℃)、α_(RT-1000℃):1.22×10~(-6)/C,体积密度:3.32g/cm~3,开口气孔率:3.7%
短句来源
     When MAS content was 7wt% and sintering technique was 1 420 ℃ for 6 h, all the properties were optimal, with the bulk density 2.485 g/cm~3, the open porosity 26.4%, and the residual strength 19.8 MPa after 1 200 ℃ thermal shock .
     当w(MAS)为7%,烧结工艺为1420℃×6h时,复相材料各性能最好,体积密度为2.485g/cm3,开口气孔率为26.4%,并且抗热震性也较好,1200℃热震后,材料的残余强度为19.8MPa.
短句来源
     Cordierite (MAS) and MAS/SiC multiphase material were prepared , and then the multiphase material's bulk density, open porosity, flexural strength and thermal-shock resistance were measured.
     合成堇青石(MAS)并制备MAS/SiC复相材料,测试了复相材料的体积密度、开口气孔率及抗热震性等.
短句来源
     With increasing of carbonization temperature,the weight loss and volume shrinkage are increasing,the volume electrical resistivity is decreasing,and there is a turning point at 973K for apparent density and open porosity.
     炭化温度越高,失重率和体积收缩率越大,体积电阻率越小,表观密度和开口气孔率则在973K出现转折点;
短句来源
  open porosities
     Results show that the open porosities are decreased and fracture strength is increased with the increase of the sintering temperatures.
     结果表明; 随着烧结温度的升高,开口气孔率降低,断裂强度升高。
短句来源
  “开口气孔率”译为未确定词的双语例句
     The results show that the density of the ceramic sample could increase from 2.13g/cm3 to 2.52g/cm3, however, and the porosity could drop from 32.95% to 3.48% through four cycles of pyrolysis and impregnation.
     实验结果表明:材料经过反复浸渍四次后,其相对体积密度由2.13g/cm~3上升到2.52g/cm~3,开口气孔率则由32.95%下降到3.48%;
     A porous La0.8Sr0.2MnO3 cathode material was prepared by gelcasting technology using carbon as pore forming material.
     采用凝胶注模工艺,以碳为造孔剂制备了开口气孔率为20%~30%的La0.8Sr0.2MnO3多孔阴极材料。
短句来源
     Further hydrothermal process induces that the sample undergoes a phase-change from grain-like β-TCP to needle-like calcium-deficient hydroxyapatite. At the same time, the porosity increases from 65.5% to 75.0%, the compressive strength enhances from 1.80MPa to 2.90MPa.
     二次水热处理工艺后,多孔生物陶瓷中的颗粒状β TCP向针状缺钙型HA转变,试样的开口气孔率从二次水热处理前的65.5%增加到75.0%,抗压强度从二次水热处理前的1.80MPa提高为2.90MPa。
短句来源
     With the increasing of sintering temperature and sintering time, density increased first, and then decreased.
     结果表明 ,复相材料的体积密度随烧结温度的升高和烧结时间的延长均出现先升高后降低的规律 ,而开口气孔率的变化规律则相反 ;
短句来源
     It could be avoided efficiently by increasing the sintering temperature as well as the apparent porosity in the binder.
     陶瓷结合剂的完全烧结温度若略高于烧成温度或能始终保持结合剂的适当开口气孔率,就可能避免产品黑心的产生。
短句来源
更多       
  相似匹配句对
     Results show that the open porosities are decreased and fracture strength is increased with the increase of the sintering temperatures.
     结果表明; 随着烧结温度的升高,口气孔率降低,断裂强度升高。
短句来源
     Testing Method for Percentage of Holing on Rotary Screen
     镍圆网孔率检测方法的研究
短句来源
     Study on Performance of Non-Uniform Perforated Compound Tray
     非均匀孔率复合塔板性能研究
短句来源
     SUNFLOWER OPENING
     太阳花
短句来源
     Of D~Lilacs and Springtime
     丁香花
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  open porosity
Total open porosity and the most probable pore radius are determined by mercury porosity technique.
      
Ceramic materials with an open porosity of 37-42% are prepared.
      
After long-term irradiation, the elevated oxygen content in the metal and the formation of relatively bulky beryllium oxide film is due to the development of open porosity.
      
The effect of the respective pore characteristics, such as the volume fraction of open porosity and pore size distribution, on the microstructure of HAP/nylon hybrid composites is discussed.
      
Open porosity increased water uptake significantly only when no starch was added to the medium.
      
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  open porosities
The implant is made in a multi-layer lattice with a geometrical form in an alloy of Titanium, Aluminium and Vanadium, creating some regular open porosities (type 1, according to the topography defined by Ducheyne measures 488 μ of width).
      
Three different types of SiC preforms, with open porosities between 60 and 70%, were prepared by pyrolysis of polysilanes and polycarbosilanes at 1670 K.
      


This paper describes the influence of impregnation of silver on microstruture and physical and mechanical properties of carbon graphite. Due to the impregnation of silver, complessive strength, flexural strength and impact strength of the composites are increased approximately one fold. The apparent porosity is decreased to less than l%.The thermal conductivity and electrical conductivity are obviously improved and the thermal expansion coeficient rise.

本文叙述浸银对炭材料的显微结构和物理,力学性能的影响。由于银的浸入,使复合材料的抗压,抗弯及冲击强度提高近一倍左右,开口气孔率降低到1%以下,导热及电性能明显改善,热膨胀系数升高。

The research results of aluminum titanate ceramic material which were used for producing 6105 ceramic exhaust pipes, pipelines and turbine cover were described. The sintering conditions and effectfs of the different additives on the properties of aluminum titanate ceramics have been studied. The type,amount and adding process of the additives were determined. The obtained material is of the bending strength 51. 3Mpa,thermal conductivity 0. 86w/mk(800℃),thermal expansion coefficent (RT-1000%)1.22×10-6/℃ ,bulk...

The research results of aluminum titanate ceramic material which were used for producing 6105 ceramic exhaust pipes, pipelines and turbine cover were described. The sintering conditions and effectfs of the different additives on the properties of aluminum titanate ceramics have been studied. The type,amount and adding process of the additives were determined. The obtained material is of the bending strength 51. 3Mpa,thermal conductivity 0. 86w/mk(800℃),thermal expansion coefficent (RT-1000%)1.22×10-6/℃ ,bulk density 3. 32g/m3 and open porosity 3. 7% respectively.

本文叙述了用于制做6105机陶瓷排气管、排气道、排气涡壳的钛酸铝陶瓷材料研究结果。主要研究了各种添加剂对钛酸铝材料性能的影响和烧成条件,从而确定了添加剂的种类、数量、引入方式。研制的钛酸铝材料性能达到σ_弯:51.3MPa、λ:0.86w/m·k(800℃)、α_(RT-1000℃):1.22×10~(-6)/C,体积密度:3.32g/cm~3,开口气孔率:3.7%

Mullite/SiC Composites were made using industrial alumna, SiO 2 and SiC. The effects of sintering process, mol ratio of Al 2O 3/ SiO 2 and trace additives on density, flexural strength, compressive strength and thermal shock resistance were studied. With the increasing of sintering temperature and sintering time, density increased first, and then decreased. With the increase of the mol ratio of Al 2O 3/ SiO 2, density increased, but strength increased first, and then decreased. Optimization of the sintering...

Mullite/SiC Composites were made using industrial alumna, SiO 2 and SiC. The effects of sintering process, mol ratio of Al 2O 3/ SiO 2 and trace additives on density, flexural strength, compressive strength and thermal shock resistance were studied. With the increasing of sintering temperature and sintering time, density increased first, and then decreased. With the increase of the mol ratio of Al 2O 3/ SiO 2, density increased, but strength increased first, and then decreased. Optimization of the sintering process, Al 2O 3/ SiO 2 mol ratio and trace additives produced a composite material with a density of 2 5 g/cm 3, a flexural strength of 34 5 MPa, a compression strength of 90 MPa, and a redundant strength ratio of 67 2% after thermal shock.

利用工业氧化铝和超细氧化硅合成莫来石 ,并结合SiC制备出了莫莱石 /SiC复相材料 .研究了烧结工艺及氧化铝和氧化硅的摩尔比对复相材料密度和强度的影响 ,并以材料的热震残余强度为指标、利用正交设计法研究了微量添加剂的影响效果 .结果表明 ,复相材料的体积密度随烧结温度的升高和烧结时间的延长均出现先升高后降低的规律 ,而开口气孔率的变化规律则相反 ;随结合相中Al2 O3 与SiO2 的摩尔比的提高 ,复相材料的密度增加、气孔率降低 ,而强度则先增后减 ;通过烧结工艺与结合相和添加剂成分的优化 ,材料密度最高可达 2 5g/cm3 ,抗折强度达 3 4 5MPa,耐压强度可达 90MPa,热震后的残余强度率为 67 2 % .

 
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