共搜索到2990条信息,每页显示10条信息,共299页。用时:0小时0分0秒838毫秒
Xiaomin, ZHONG Dakang, et al. Vertical distribution of secondary pores in Paleogene sandstones in Huimin Depression and its genesis analysis[J]. Earth Science: Journal of China University of Geosciences......
(+); (e) Pores in diabase porphyry filled with opal and chalcedony(+); (f) Serpentinized and calcitized pyroxene phenocryst in diabase porphyry(+) 3 岩石地球化学特征 3.1 主量元素 据主量元素分析结果可知(见表1),硅铝质岩w......
tightly to the Cu underlayer. In addition, the Ni-P-TiN composite coating is compact and no pores exist in its cross-section morphology. As shown in Fig. 5(b), the corresponding element distribution from......
, the β-Al5FeSi phase fragmented into small plate morphology and the α-(Al15(Mn,Fe)3Si2) solidified as polygonal-shaped resulted in an improvement in the strength and elongation. Also, the presence of pores......
, exhibiting small hills like surface morphology and the deposits containing some pores. This may be due to hydrogen bubbles accumulated in the deposits. Although grain size and roughness value (Ra......
. The boundaries between the individual foils which are not noticed in polished condition are discovered only after etching. It can be seen that good bonding occurs between foils and no gaps and pores are observed......
versus displacement such as elastic deformation, linearly. So, during a wide range of displacement and until trapped air exists in the pores through the deformation, applied force on the polyurethane......
with the addition of the red mud particles. It may be noted that the theoretical density does not take into account the various experimental conditions such as formation of pores and casting defects (as per Eq. (3.... This may be attributed to the variations in the porosity level within the composites that significantly control the failure mechanism of these composites. The formation of micro-pores......
4.66 m2/g, which is highly beneficial for catalytic or adsorption reaction. The Smicro is only 1.26 m2/g, which shows the low microporosity of the synthetic zeolite. Generally, pores of solid materials......
, which makes it more difficult to be deformed during compaction [26]. This restriction resulted in the formation of pores thus reduced the corrosion resistance of the Mg-Zn alloy especially due......