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Online since: March 2013
Authors: Chuan Zeng Pan, Zhong Min Zhao, Long Zhang, Jing Zhang
There have been a number of investigations to utilize the high compressive strength and low density properties of ceramics for designing lightweight armor.
It is considered that the preparation process for TiC-TiB2 ceramic involves three stages: (1) Formation of the immiscible liquids consisting of Ti-Cr-C-B liquid and oxide liquid along with thermite reaction and decomposition of B4C during the first stage; (2) Formation of the layered melts in high-gravity filed due to Stocks immigration between the immiscible liquids during the second stage and (3) Formation of fine-grained TiC-TiB2 solidified ceramics due to rapid coupled growth of TiC and TiB2 phases far away from the equilibrium state during third stage.
It is considered that the preparation process for TiC-TiB2 ceramic involves three stages: (1) Formation of the immiscible liquids consisting of Ti-Cr-C-B liquid and oxide liquid along with thermite reaction and decomposition of B4C during the first stage; (2) Formation of the layered melts in high-gravity filed due to Stocks immigration between the immiscible liquids during the second stage and (3) Formation of fine-grained TiC-TiB2 solidified ceramics due to rapid coupled growth of TiC and TiB2 phases far away from the equilibrium state during third stage.
Online since: March 2016
Authors: Sergey Taskaev, Vladimir V. Khovaylo, Valeria Rodionova, Anna Kosogor
Fundamental and practical aspects of the damping capacity of the shape memory alloys have been summarized in a number of review papers (see Refs. [3-8]).
Kainuma, Effect of grain size on superelasticity in Fe-Mn-Al-Ni shape memory alloy wire, APL Mat. 1 (2013) 032103.
Kainuma, Effect of grain size on superelasticity in Fe-Mn-Al-Ni shape memory alloy wire, APL Mat. 1 (2013) 032103.
Online since: April 2008
Authors: Ya. Matychak, V. Fedirko, O. Yaskiv, O. Tkachuk, I. Pohreljuk
A number of experimental data reveal that under special
rarefaction for long process time the nitride islands are formed on the alloy surface whereas the
continuous nitride film may not be formed [1].
Additional effects on the gaseous saturation are forced by chemical reactions which take place at the defects of the lattice, on the dislocations, on the grain boundaries and on the structural-phase heterogeneities.
Additional effects on the gaseous saturation are forced by chemical reactions which take place at the defects of the lattice, on the dislocations, on the grain boundaries and on the structural-phase heterogeneities.
Online since: September 2008
Authors: Ji Wang Yan, Akihiko Kubo, Junichi Tamaki
In this case, the maximum grain depth of the cut must be set to less than the critical depth
of the cut dc to realize the ductile-regime machining of hard and brittle materials.
The dc value depends on the physical characteristics of the material and the shape of the cutting edge, and a number of studies focusing on the dc value have been reported.
The dc value depends on the physical characteristics of the material and the shape of the cutting edge, and a number of studies focusing on the dc value have been reported.
Online since: October 2008
Authors: Yang Xian Li, Jin Sheng Liang, Qing Guo Tang, Li Wei Li, Jun Ping Meng, Fei Wang
When the temperature is above 700°C, grain diameter of sample increase
rapidly.
Acknowledgements This work was supported by the National Science and Technology Support Planning Project (serial number: 2007BAQ01054-07) References [1] H.
Acknowledgements This work was supported by the National Science and Technology Support Planning Project (serial number: 2007BAQ01054-07) References [1] H.
Online since: July 2013
Authors: Hong Yu Yang, Dong C. Liu, De Quan Guo, Zhi Jie Zhang
Detail resolution is improved, and the brightness of tissue mutation is more apparent, for example, the pixels number between 20 and 30, and from 90 to 100, meanwhile, some small diffuse scattering are inhibited in the amniotic fluid regions by maximum operation.
In contrast, entropy is larger means fine grained.
In contrast, entropy is larger means fine grained.
Online since: October 2014
Authors: Paula O. Guglielmi, Diego Blaese, Murilo Hablitzel, Gabriel Nunes, Daniel Garcia, Dachamir Hotza, Rolf Janssen, Victor R. Lauth, Hazim A. Al-Qureshi
After burning out the organic components, sintering is performed at 1200°C to avoid excessive grain growth of the Nextel™ 610 alumina fibers [4, 8] used as reinforcement.
These pairs were then joined together, until the desired number of prepregs was achieved.
These pairs were then joined together, until the desired number of prepregs was achieved.
Online since: May 2024
Authors: Tjipto Sujitno, Suprapto Suprapto, Teguh Dwi Widodo, Margono Margono, Muhammad Kozin, Djarot B. Darmadi
The formation of Al2O3 on the Al surface is caused by the strong oxidation number between the Al and O atoms [2].
The surface of the sample is visible by the presence of grains attached.
The surface of the sample is visible by the presence of grains attached.
Online since: October 2023
Authors: Ricardo J. Alves de Sousa, Fábio A.O. Fernandes, Guilherme J. A. Sousa, Ana R. S. Rocha, Gabriel F. Serra
The cork grains ranging from 0.5 to 1.0 mm were supplied by Carel-Campos & Resende, Lda. [13].
However, the numbers decrease significantly after this amount of STF, hypothesizing the potential negative influence of higher concentrations of STF in the typical agglomeration process of cork agglomerates.
However, the numbers decrease significantly after this amount of STF, hypothesizing the potential negative influence of higher concentrations of STF in the typical agglomeration process of cork agglomerates.
Online since: May 2016
Authors: Wun Kai Wang, Hsuan Liang Lin
The overall evaluation of the multi-response characteristic is based on the GRG, which is given by
(3)
Assume that ===1, where is the GRG for the experiment, is the weighting factor for the QC, and is the number of QCs.
The fusion zone of conventional GMA welds is mainly made up of dendrite grains as shown in Fig. 10a.
The fusion zone of conventional GMA welds is mainly made up of dendrite grains as shown in Fig. 10a.