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Online since: November 2011
Authors: Shu Qing Guo, Xiang Yuan Dong
In the same time, the germination experiments of all incubated materials were investigated.
The materials was imported from 1 step, and the feed of K+1 is the discharge of K.
The balance of the organic materials The components of the organic materials in the HTD system are the hydrolysis and un-hydrolysis, degradation and non-degradation substance, and ashes.
Master's Dissertation, Institute of Engineering Thermophysics, Chinese Academy of Sciences (in Chinese) , 2003
Journal of Thermal sicience, 2006, 15(3): 274-280
The materials was imported from 1 step, and the feed of K+1 is the discharge of K.
The balance of the organic materials The components of the organic materials in the HTD system are the hydrolysis and un-hydrolysis, degradation and non-degradation substance, and ashes.
Master's Dissertation, Institute of Engineering Thermophysics, Chinese Academy of Sciences (in Chinese) , 2003
Journal of Thermal sicience, 2006, 15(3): 274-280
Online since: July 2021
Authors: Iman Jabber Al-Shaibani, Hiba Kareem Jabber
"Research trends in polymer materials for use in lightweight vehicles", International journal of precision engineering and manufacturing, vol. 16.1(2015), pp. 213-220
"Welding of very dissimilar materials (Fe-Al)", Jom, vol.66.10(2014), pp.2123-2129
"Critical assessment 27: dissimilar resistance spot welding of aluminium/steel: challenges and opportunities", Materials Science and Technology, vol.33. 15 (2017), pp. 1705-1712
"Powder metallurgical fabrication and microstructural investigations of aluminum/steel functionally graded material", Materials Sciences and Applications,vol. 2.12(2012), pp. 1708
"Critical assessment 27: dissimilar resistance spot welding of aluminium/steel: challenges and opportunities ", Materials Science and Technology ,vol.33.15(2017) ,pp. 1705-1712
"Welding of very dissimilar materials (Fe-Al)", Jom, vol.66.10(2014), pp.2123-2129
"Critical assessment 27: dissimilar resistance spot welding of aluminium/steel: challenges and opportunities", Materials Science and Technology, vol.33. 15 (2017), pp. 1705-1712
"Powder metallurgical fabrication and microstructural investigations of aluminum/steel functionally graded material", Materials Sciences and Applications,vol. 2.12(2012), pp. 1708
"Critical assessment 27: dissimilar resistance spot welding of aluminium/steel: challenges and opportunities ", Materials Science and Technology ,vol.33.15(2017) ,pp. 1705-1712
Online since: January 2004
Authors: H.B. Alaa, E.E. Abdel-Hady, Hamdy F.M. Mohamed
The Positron Annihilation Lifetime (PAL) technique
provides information about electron densities and the Doppler broadening of annihilation radiation
(DBAR) measurement gives only qualitative information about the momentum density for materials
under study [1, 2].
The PAL spectra in materials typically exhibit three lifetime components.
The �\ decreases with increasing the frequency verifying the fact that, for polar materials (PVC), the initial value of �\ is high but as the frequency of the a.c. field is raised, the value of �\ begins to drop.
This is not the bulk dielectric constant but rather is due to the free charge motion within the materials and is sometimes known as space-charge polarization [6].
Prochazka, Materials Structure 8 (2001), p. 55 [2] E.
The PAL spectra in materials typically exhibit three lifetime components.
The �\ decreases with increasing the frequency verifying the fact that, for polar materials (PVC), the initial value of �\ is high but as the frequency of the a.c. field is raised, the value of �\ begins to drop.
This is not the bulk dielectric constant but rather is due to the free charge motion within the materials and is sometimes known as space-charge polarization [6].
Prochazka, Materials Structure 8 (2001), p. 55 [2] E.
Online since: August 2008
Authors: Naratip Vittayakorn, Gobwute Rujijanagul, David P. Cann, S. Nabunmee
Rujijanagul*
Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
*rujijanagul@yahoo.com
Keywords: Dielectric permittivity, Phase transition, PZT-PZN-PNN ceramics
Abstract.
Introduction In the last decade, normal ferroelectric such as lead zirconate titanate [PbZr1−xTixO3, PZT] has become an important commercially produced piezoelectric materials.[1-3] Excellent piezoelectric properties of PZT have been observed in compositions close to the morphotropic phase boundary(MPB Zr:Ti ,52:48). [1-3] Locating the MPB for the ferroelectric materials is very important for making the phase diagram and for obtaining excellent electrical properties.
Acknowledgements This work was supported by The Thailand Research Fund (TRF), National Metal and Materials Technology Center (MTEC), Faculty of Science and Graduate School Chiang Mai University, and Commission on Higher Education (CHE) Thailand.
Herbert : Electroceramics Materials Properties and Applications (Chapman and Hall, New York, 1990)
Halliyal: Journal of American Ceramics Society Bull. (1987)
Introduction In the last decade, normal ferroelectric such as lead zirconate titanate [PbZr1−xTixO3, PZT] has become an important commercially produced piezoelectric materials.[1-3] Excellent piezoelectric properties of PZT have been observed in compositions close to the morphotropic phase boundary(MPB Zr:Ti ,52:48). [1-3] Locating the MPB for the ferroelectric materials is very important for making the phase diagram and for obtaining excellent electrical properties.
Acknowledgements This work was supported by The Thailand Research Fund (TRF), National Metal and Materials Technology Center (MTEC), Faculty of Science and Graduate School Chiang Mai University, and Commission on Higher Education (CHE) Thailand.
Herbert : Electroceramics Materials Properties and Applications (Chapman and Hall, New York, 1990)
Halliyal: Journal of American Ceramics Society Bull. (1987)
Online since: January 2004
Authors: Yutaka Ito, Jun Onoe, Takenori Suzuki, Nikolay Djourelov, Kenjiro Kondo, Yasuo Ito, Victor P. Shantarovich
Moscow 119977 GSP-1, Kosygin st.4, Russia, shant@chph.ras.ru
7
Materials Science Division, Research Laboratory for Nuclear Reactors, PRESTO/CRESTJST,
Tokyo Institute of Technology, Ookayama, Meguro, Tokyo 152-8550, Japan,
jonoe@nr.titech.ac.jp
����
-G[YQTFU-G[YQTFU-G[YQTFU-G[YQTFU�����Positron, Doppler-broadening, Fullerene, C60, C70, nanotube�
����
#DUVTCEV�#DUVTCEV�#DUVTCEV�#DUVTCEV�� Coincidence Doppler-broadening spectroscopy was applied to C60 and C70
fullerenes and other carbon phases, such as nanotubes and graphites.
Remarkable differences were observed in the Doppler-broadening of the positron annihilation �-rays in these materials, which reflect the different densities distribution of the momentum for electrons annihilated with positrons.
On the other hand, after the discovery of C60 and C70 fullerenes, positron annihilation lifetime was also examined for those materials[1, 2, 3].� In a previous report, we reported our first measurement of� the positron lifetime and Doppler-broadening of the annihilation � ray[4].� At that time, although we measured the Doppler-broadening of the annihilation � -ray using just a single Ge detector, we were able to observe a difference in the Dopplerbroadening spectrum of C60, C70, nanotubes and graphite.
To clarify those differences, we tried to examine those materials using the coincidence Doppler-broadening method.
This would reflect the different positron distributions in those materials caused by their geometric structure.
Remarkable differences were observed in the Doppler-broadening of the positron annihilation �-rays in these materials, which reflect the different densities distribution of the momentum for electrons annihilated with positrons.
On the other hand, after the discovery of C60 and C70 fullerenes, positron annihilation lifetime was also examined for those materials[1, 2, 3].� In a previous report, we reported our first measurement of� the positron lifetime and Doppler-broadening of the annihilation � ray[4].� At that time, although we measured the Doppler-broadening of the annihilation � -ray using just a single Ge detector, we were able to observe a difference in the Dopplerbroadening spectrum of C60, C70, nanotubes and graphite.
To clarify those differences, we tried to examine those materials using the coincidence Doppler-broadening method.
This would reflect the different positron distributions in those materials caused by their geometric structure.
Online since: April 2008
Authors: Fu Guo Li, Yu Hong Liu, Xiao Na Wang
SIMULATION OF THE FGH96 SUPERALLOY
MICROSTRUCTURAL CHANGES UNDER DIFFERENT
DEFORMATION CONDITIONS
Xiaona WANG 1, a
, Fuguo
LI 1, b
, Yuhong LIU
1, c
(School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an
710072, China)
a
wangxiaona78@163.com, b
fuguolx@nwpu.edu.cn, c
nsdi@mail.nwpu.edu.cn
Keywords: P/M Superalloy, dynamic recrystallization, peak strain, critical strain, numerical
simulation
Abstract.
They would like to thank the teachers and engineerings concerned in the Numerical Simulation and Data Integration Center of the School of Materials Science and Engineering at the Northwestern Polytechnical University.
Material Science and Engineering B 2006, 130:254-263 [3] WANG Shuyun, LI Huiqu, ZHANG Maicang.A study of the mechanical properties of FGH96 alloy in isothermal deformation.
Journal of Aeronautical Materials, 2002,22(1):51-53 [5] M.
Material Science and Engineering A 2006, 429:295-303
They would like to thank the teachers and engineerings concerned in the Numerical Simulation and Data Integration Center of the School of Materials Science and Engineering at the Northwestern Polytechnical University.
Material Science and Engineering B 2006, 130:254-263 [3] WANG Shuyun, LI Huiqu, ZHANG Maicang.A study of the mechanical properties of FGH96 alloy in isothermal deformation.
Journal of Aeronautical Materials, 2002,22(1):51-53 [5] M.
Material Science and Engineering A 2006, 429:295-303
Online since: June 2014
Authors: Xin Sheng Xu, Yu Ling Zhao, Guo Ming Wang
We have carried out the random sampling inspection for raw materials.
In addition to the supervision of the whole process of construction site, reinforcing materials are tested for mechanical properties test.
[2] Structure of carbon fiber reinforced technical manuals, civil defense science institute of Shanghai, Shanghai Gilgamesh solid building materials co., LTD
Experimental Research on Shear Behavior of RC Beams Strengthened with BFRP Sheets [J].Journal of Hebei Institute of Architecture and Civil Engineering. 2008 (3)
Journal of Tongji University, 2009, 37(9): 1153-1156.
In addition to the supervision of the whole process of construction site, reinforcing materials are tested for mechanical properties test.
[2] Structure of carbon fiber reinforced technical manuals, civil defense science institute of Shanghai, Shanghai Gilgamesh solid building materials co., LTD
Experimental Research on Shear Behavior of RC Beams Strengthened with BFRP Sheets [J].Journal of Hebei Institute of Architecture and Civil Engineering. 2008 (3)
Journal of Tongji University, 2009, 37(9): 1153-1156.
Online since: May 2014
Authors: Li Yun Yi, Chang Chun Li
(c) Material source condition, which provides basic material for the formation of debris flows.
Material source conditions.
HUANG, “Developmental Features And Evaluation Of Blocking Dangers Of Dashui Ditch Debris Flow In Tangjiashan Dammedlake,” Chinese Journal of Rock Mechanics and Engineering, vol.28,pp.850-858,2009
CHEN, “Characteristics and Countermeasures of Debris Flow in Wenchuan Area After the Earthquake,” Journal of Sichuan University (Engineering Science Edition), 2010,vol.42,pp.l0-19,2010
DING, “Field Investigation and Research on Giant Debris Flow on August 14, 2010 in Yingxiu Town,Epicenter of Wenchuan Earthquake Earth Science,” Journal of China University of Geosciences, vol.36,pp.172-180,2011
Material source conditions.
HUANG, “Developmental Features And Evaluation Of Blocking Dangers Of Dashui Ditch Debris Flow In Tangjiashan Dammedlake,” Chinese Journal of Rock Mechanics and Engineering, vol.28,pp.850-858,2009
CHEN, “Characteristics and Countermeasures of Debris Flow in Wenchuan Area After the Earthquake,” Journal of Sichuan University (Engineering Science Edition), 2010,vol.42,pp.l0-19,2010
DING, “Field Investigation and Research on Giant Debris Flow on August 14, 2010 in Yingxiu Town,Epicenter of Wenchuan Earthquake Earth Science,” Journal of China University of Geosciences, vol.36,pp.172-180,2011
Online since: March 2019
Authors: Xiao Guang Yang, Duo Qi Shi, Xue Feng Teng
Composite Materials for Aerospace Propulsion Related to Air and Space Transportation[M]// Lightweight Composite Structures in Transport. 2016
Composites Science & Technology, 1996, 56(7):809-814
Relationships between Hysteresis Measurements and the Constituent Properties of Ceramic Matrix Composites: II, Experimental Studies on Unidirectional Materials[J].
Materials Science & Engineering A 2011; 530(1):349-356
Applied Composite Materials 2013; 20(4):693-707
Composites Science & Technology, 1996, 56(7):809-814
Relationships between Hysteresis Measurements and the Constituent Properties of Ceramic Matrix Composites: II, Experimental Studies on Unidirectional Materials[J].
Materials Science & Engineering A 2011; 530(1):349-356
Applied Composite Materials 2013; 20(4):693-707
Online since: May 2011
Authors: Min Ren Yan
Acknowledgement
Parts of the research were financially supported by the National Science Council in Taiwan (NSC 99-2628-E-034-001).
Smith: International Journal of Project Management, Vol. 23 (2005), p. 45-53
Mansfield: International Journal of Project Management, Vol. 17 (1999), p. 89-93
Teng: Journal of Management Studies, Vol. 22 (1996), 827-843
Johannes: International Journal of Project Management, Vol. 21 (2003), p. 39–49
Smith: International Journal of Project Management, Vol. 23 (2005), p. 45-53
Mansfield: International Journal of Project Management, Vol. 17 (1999), p. 89-93
Teng: Journal of Management Studies, Vol. 22 (1996), 827-843
Johannes: International Journal of Project Management, Vol. 21 (2003), p. 39–49