共搜索到24492条信息,每页显示10条信息,共2450页。用时:0小时0分0秒437毫秒
. The open porosity and compressive strength as well as compressive elastic modulus vary with the adding amount and particle size of NH4HCO3. When the mass fraction of NH4HCO3 added is 25%, elastic modulus and compressive strength of composites with porosity of around 50% are found to be similar to those of human bone. Key words: Ti-Mg composite; NH4HCO3; powder metallurgy; porosity; compressive 1......
to the compressive property of composites for changing the interface bond. The compressive strength of the composite reinforced by SiC foam with sandwich-structure strut is the highest, and that of the composite reinforced by SiC foam with double-layer strut is the lowest. With the increase of SiC foam aperture, the compressive strength, elastic modul and yield strength of the composites increase......
......
. Porosity control and compressive strength of porous zirconia prepared by freeze casting[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(8): 2059-2068. DOI: 10.11817/j.ysxb.1004.0609.2021-41030 多孔氧化锆.... Fracture mode and compressive strength of ice-templated porous zirconia[J]. Ceramics International, 2021, 47(12): 17373-17382. [24] HUANG Y, XIONG H, ZOU J, et al. Ultralight porous SiC with attracting......
(Ⅱ) --Pore ratio and compressive strength Abstract: This study was focussed upon the porosity (pore ratio) and compressive strength of the raw material, which was mixed... and compressive strength were measured, and were compared with those of the compacts un roasted. The results show that, the porosity of all compacts decreases with increasing pressing pressure linearly......
="ChDivSummary" name="ChDivSummary">Uniaxial compression tests were conducted to characterize the main compressive performance of ultra high toughness cementitious composite (UHTCC) in terms of strength and toughness and to obtain its stress-strain relationships. The compressive strength investigated ranges from 30 MPa to 60 MPa. Complete stress-strain curves were directly obtained, and the strength indexes......
18 June 2013 Abstract: The effect of Sn, Ca, Al, Si and Zn addition on the compressive strength of cast Mg-Sn-Ca (TX) alloys was studied in the temperature range of 25-250 °C and correlated... in the matrix. While the compressive strength decreases with the increase in temperature, for Sn/Ca up to 2.5, a plateau occurs in 100-175 °C, which is attributed to the strengthening by Mg2Ca. However......
; 文章编号:1672-7207(2018)03-0718-07 Effect of salt content on compressive strength of solidified sulphate saline soil L Qingfeng1, JIA Mengxue1, WANG Shengxin2, ZHOU Gang1, WANG... Institute, Gansu Academy of Sciences, Lanzhou 730000, China) Abstract: To discuss the effect of salt content on compressive strength, the unconfined compressive strength test for sulphate saline soil......
high-volume fly ash (HVFA) is usually used to obtain economical and more sustainable merits, but these merits suffer from dramatically low compressive strength especially at early ages. In this work, the possibility of using micro-size metakaolin (MSK) particles to improve the compressive strength of HVFA paste before and after subjecting to high temperatures was studied. To produce HVFA paste......
of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: Based on the analysis of the leaching toxicity and compressive strength, the sulfuration slag and gypsum slag... of sulfuration slag is less than 150 μm, the gypsum slag adding ratio is 20% and the aggregate adding ratio is 15%, and the compressive strength of solidified body will reach the maximum value as 47.5 MPa......