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Online since: October 2012
Authors: Kai Liao, Yun Xin Wu
Provided the number of failed clampers is the same, effect of middle clampers failure is less than that of edge clampers failure which is depended on the force characteristics.
Internal micro-defects between brittle phase and matrix and in areas of grain-boundary segregation introduced in thick plate preparation would cause macroscopic defects such as cracks, sharp corners and slots etc. on the surface.
For example, the brittle precipitated phases can easily cause stress concentration at grain boundaries and form fracture pathways.
Online since: January 2013
Authors: Yong Ping Qu, Zengzhi ZHANG
Experimental Experimental Material The experiment uses kaolin made in Maoming with grain size of 325 mesh.
Infrared analysis was used to study the combination of propionamide and kaolin grains with a Nicolet Magna–IR750 Fourier transform infrared (FTIR) spectroscope.
Data of water content Test number Moisture content /% 1 2 3 4 5 6 7 8 9 A 29.06 36 27.32 22.29 25 19.41 17.26 13.52 9.93 B1 31.39 24.17 23.96 23.03 19.13 17.95 17.24 15.49 14.16 B2 31.71 32.85 27.63 23.15 25.76 23.28 20 14.73 11.43 B3 36.13 31.62 28.75 25.86 21.21 20.87 19.21 16.27 14.62 B4 29.13 31.65 30.87 29.13 20.18 18.93 14.04 13.41 10.96 In Table 1 we can find that moisture content of each sample decline even as time went and moisture contents all declined below 20%.
Online since: February 2013
Authors: Xiao Bing Chen, Chun Yan Chen, Song Hou, Xiang Yu Mao
BLSFs are built up with regular layers of (Bi2O2)2+ and (An-1BnO3+n)2- perovskite slabs and n is an integer indicating the number of perovskite layers.
Fig.2 shows the FE-SEM images of the BFCT-x ceramics, from the pictures, the samples are well-packed and contain grain structure with well-defined grain boundaries.
Online since: April 2022
Authors: Tian Chi Wang, Xiao Tong Li, Hui Lai Li, Yu Wei Gu
During the heating process, the well-distributed tetragonal zirconia (t-ZrO2) grains in the Al2O3-ZrO2 system transform into the monoclinic phase (m-ZrO2), which can significantly improve the high-temperature fracture toughness and strength of the ceramic[9].
Experimental parameters Number AlCl3 concentration (wt%) ZrOCl2 doping content (mol%) Sintering temperature (°C) 1 5 0 1000 2 5 5 1000 3 5 10 1000 4 5 15 1000 5 5 20 1000 6 5 25 1000 7 5 30 1000 8 5 35 1000 Results and Discussion Phragmites australis is a tall grass, the lower part of the leaf sheath is shorter than the upper part.
Ren, et al., Fine grained Al2O3-ZrO2(Y2O3) ceramics by controlled crystallization of amorphous phase, J.
Online since: July 2014
Authors: Ma Jia Wu, Xiu Hua Chen, Zai Yu Zhang
Low temperature, due to smaller critical nucleation free energy to form the core of the grain and form a larger number of small, poor crystallinity, resistivity larger.
Temperature increases the critical nucleation free energy barrier, the higher the temperature high is easy to form larger particles films by deposition of thin film heat transfer atoms to obtain a higher activation energy and migration, and thus a long thin grains become large, small resistivity.
Online since: October 2013
Authors: Fang Yi Deng, Yu Song He, Yuan Fang Li
Reagent: bread, candy, steamed rice grain, banana.
Such as villages, lakes, fields, mid-level terrace, forest survey, the distribution of the number of red ants and pharmaceutical etc.
high to find Ninglang Xian Village Capturing / access 100% 50% 3 Behind the house Not easy to finding too high grass Ninglang Xian The field Capturing — — 5 The ridge Bank Terraced fields The West Bay of Village Capturing / access 60% 20% 1 The village after the fence Along the lake (3)Lake mud embankment; Characteristics, its nest is generally higher than the ground, Anaguchi Xiangyang, the soil is dry more solid, more external entrance.In the village of habitat include the following: (1)Long pile of firewood, pile of pig feed or often scattered pig feed (with bran, surface feed as major); (2)Stacked grain
Online since: August 2015
Authors: Suhardjo Poertadji, Erwin Ermawan
To overcome this difficulty, a number of new concepts and new materials have been examined.
Samples with higher Ca content have higher porosity and smaller grain size.
Most pores/voidsare located at the grain boundaries and ununiformly distributed in a relatively wide range.
Online since: October 2014
Authors: Wei Ping Wang, Hai Yan Deng, Qiang Huang
The agricultural production and the main problem in the development and utilization of water resources in Shandong province The yields of grains, vegetables, fruits, oilseeds and cotton of Shandong province ranked the forefront in China.
(2) The industrialization and urbanization process consumed a large number of agricultural water which makes the agricultural water showed a trend of decrease.
In general, when produce 1 kg grains, it will consume 1000 kg water.
Online since: September 2007
Authors: Manabu Enoki, Yun Ping Li
Samples were with the grain size of about 30-50µm.
There are three explanations that can be offered for the higher hardening rate in the parallel sample at higher strain levels [6]: Twinning introduces additional barriers to dislocation movements [7], which is in some extent equivalent to reducing the grain size. { }1012 twinning in Mg reorients the lattice to hard crystallographic orientations [8], and the other twinning systems or non-basal slipping systems with the higher CRSS [1] have to be activated.
It is thought that the detwinning is closely related to the number of unstable twinning before recovery.
Online since: January 2021
Authors: Takayoshi Nakano, Takeshi Nagase, Mitsuharu Todai
This variation affects the development of the crystallographic texture, resulting in enhancing the formation of elongated grains with a high <001> orientation along the building direction [6].
(3) The preferential crystallographic orientation along the <001> direction and the formation of elongated grains along the building direction were observed in the obtained Ti-20at.
This work was also supported by Grants-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (grant number: 18H05254, 25220912 and 20K05141).
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