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Online since: September 2014
Authors: Xiao Lei Zhou, Zhe Shi, Gui Fang Zhang, Yue Hua Ding, Xiao Yuan Yang
Materials Science Forum, 2003(1): 223-228
Materials Science andEngineering A, 2004, 38(1): 365—377
Materials Science Forum, 2005(1): 475-479
Journal of University of Science and Technology Beijing, 2001, 23(1): 48-51
Engineering Science, 2014(4): 274
Materials Science andEngineering A, 2004, 38(1): 365—377
Materials Science Forum, 2005(1): 475-479
Journal of University of Science and Technology Beijing, 2001, 23(1): 48-51
Engineering Science, 2014(4): 274
Online since: August 2017
Authors: C.P. Karthikeyan, Natarajan Gobinath
Significant developments in the field of nano science have happened through the potential class of fluids called nano fluids.
Nano particles made of high thermal conductivity materials and their increased fraction in pure fluids enhance the thermal conductivity of the nano fluid [3&4].
The thermal conductivity of nanofluids varies with the size, material of nanoparticles as well as base fluids.
Khodafarin “Effect of CNT structures on thermal conductivity and stability of nanofluid”, International Journal of Heat and Mass Transfer 55(2012) 1529–1535 [6] Azadeh Ghadimi, Ibrahim Henk Metselaar, “The influence of surfactant and ultrasonic processing on improvement of stability, thermal conductivity and viscosity of titania nanofluid”, Experimental Thermal and Fluid Science, 51(2013) 1-9 [7] Bangming Gu, Bo Hou, Zhangxian Lu, Zhengliang Wang, Shanfei Chen, “Thermal conductivity of nanofluids containing high aspect ratio fillers” International Journal of Heat and Mass Transfer 64(2013) 108-114 [8] Sarit Kumar Das , Stephen U.
Pratibha Nalini “A comparative study on particle–fluid interactions in micro and nanofluids of aluminium oxide” Microfluidics and Nanofluidics, 10(2011) -2, 263-270 [12] Seung Won Lee, Sung Dae Park, Sarah Kang, In Cheol Bang, Ji Kyun Kim “Investigation of viscosity and thermal conductivity of SiC nanofluids for heat transfer applications” International Journal of Heat and Mass Transfer 54(2011) 433 – 438 [13] M.Ghanbarpour, E.Bitaraf Haghigi, R.Khodabandeh “Thermal properties and rheological behavior of water based Al2O3 nanofluid as a heat transfer fluid” Experimental Thermal and Fluid Science 53(2014) 227-235 [14] Sivasankaran Harish, Kei Ishikawa, Erik Einarsson, Shinya Aikawa, Shohei Chiashi, Junichiro Shiomi, Shigeo Maruyama “Enhanced thermal conductivity of ethylene glycol with single-walled carbon nanotube inclusions” International Journal of Heat and Mass Transfer 55(2012) 3885 – 3890 [15] Rohit S.
Nano particles made of high thermal conductivity materials and their increased fraction in pure fluids enhance the thermal conductivity of the nano fluid [3&4].
The thermal conductivity of nanofluids varies with the size, material of nanoparticles as well as base fluids.
Khodafarin “Effect of CNT structures on thermal conductivity and stability of nanofluid”, International Journal of Heat and Mass Transfer 55(2012) 1529–1535 [6] Azadeh Ghadimi, Ibrahim Henk Metselaar, “The influence of surfactant and ultrasonic processing on improvement of stability, thermal conductivity and viscosity of titania nanofluid”, Experimental Thermal and Fluid Science, 51(2013) 1-9 [7] Bangming Gu, Bo Hou, Zhangxian Lu, Zhengliang Wang, Shanfei Chen, “Thermal conductivity of nanofluids containing high aspect ratio fillers” International Journal of Heat and Mass Transfer 64(2013) 108-114 [8] Sarit Kumar Das , Stephen U.
Pratibha Nalini “A comparative study on particle–fluid interactions in micro and nanofluids of aluminium oxide” Microfluidics and Nanofluidics, 10(2011) -2, 263-270 [12] Seung Won Lee, Sung Dae Park, Sarah Kang, In Cheol Bang, Ji Kyun Kim “Investigation of viscosity and thermal conductivity of SiC nanofluids for heat transfer applications” International Journal of Heat and Mass Transfer 54(2011) 433 – 438 [13] M.Ghanbarpour, E.Bitaraf Haghigi, R.Khodabandeh “Thermal properties and rheological behavior of water based Al2O3 nanofluid as a heat transfer fluid” Experimental Thermal and Fluid Science 53(2014) 227-235 [14] Sivasankaran Harish, Kei Ishikawa, Erik Einarsson, Shinya Aikawa, Shohei Chiashi, Junichiro Shiomi, Shigeo Maruyama “Enhanced thermal conductivity of ethylene glycol with single-walled carbon nanotube inclusions” International Journal of Heat and Mass Transfer 55(2012) 3885 – 3890 [15] Rohit S.
Online since: March 2017
Authors: Alain Iost, Ali Lahouel, Said Boudebane, Alex Montagne
Journal of materials science. 2001;36(18):4519-30
Science and Engineering of Composite Materials. 2014;23(4):381–8
Materials Science and Engineering: A. 1990;128(2):241-52
International Journal of Refractory Metals and Hard Materials. 2011;29(3):356-60
Journal of Materials processing technology. 1994;41(2):143-69
Science and Engineering of Composite Materials. 2014;23(4):381–8
Materials Science and Engineering: A. 1990;128(2):241-52
International Journal of Refractory Metals and Hard Materials. 2011;29(3):356-60
Journal of Materials processing technology. 1994;41(2):143-69
Online since: June 2008
Authors: Young Eui Shin, S.W. Han, Il Je Cho, M.G. Choi, Y.T. Kim, J.G. Han, Jong Min Kim, Kyong Ho Chang
Considering the environmental restriction such as
ROHS, the QFP Cu LF (Lead-frame) was coated with lead-free materials (Sn, Sn-3Bi).
The QFP lead (Cu) was plated with two kind of lead-free materials (Sn and Sn-3Bi).
Wang, Journal of Alloys and Compounds Vol. 381 (2004) p. 202-207
Feng, Journal of Alloys and Compounds Vol. 397 (2005) p. 260-264
Kobayashi, Science and Technology of Advanced Materials Vol. 5 (2004) p. 267-276
The QFP lead (Cu) was plated with two kind of lead-free materials (Sn and Sn-3Bi).
Wang, Journal of Alloys and Compounds Vol. 381 (2004) p. 202-207
Feng, Journal of Alloys and Compounds Vol. 397 (2005) p. 260-264
Kobayashi, Science and Technology of Advanced Materials Vol. 5 (2004) p. 267-276
Online since: August 2013
Authors: Jian Feng Yang, Ling Ling Chen, Wen Bin Liu
Failure modes of the blade [2]
Fatigue.Stress fluctuation will make the flue gas turbine blade fatigue failure.Fatigue failure stress value is often far lower than material strength limit.
oxide layer broken X2 Running flue gas mixed with impurities X34 Liquid sodium sulfate precipitation X3 Materials affected by foreign object damage X35 Machine from the inlet flue gas intake of impurities X4 Hot surface roughness influenced by heat stress X36 Combination of oxide and sulfide reaction X5 Blade cooling effect falling X37 Temperature between corrosion temperature range X6 Rotor gap narrowed X38 The cooling failure X7 Semal edge plastic deformation X39 Formation of corrosive environment X8 Blade rubbing with static son X40 Corrosion cut the leaf size X9 Cooling coating material performance degradation X41 Reduce the fatigue strength of the blade X10 A thermometer socket pipe failure X42 High temperature caused by temperature control failure X11 Cooling channel blocking X43 Protective coating in the thermal cycle process of break Case analysis Case.
The causion of the blade fracture is that when thermal stress is greater than the yield stress of material.
(In Chinese) [3] Liu xiaobo, Sun kang: Journal of Jiangxi University of Science and Technology, Vol.27 (2006), No.1, p. 1-3.
(In Chinese) [4] S Borguet O, Léonard: Journal of Computational and Applied Mathematics, Vol.234 (2010), p. 2202-2212
oxide layer broken X2 Running flue gas mixed with impurities X34 Liquid sodium sulfate precipitation X3 Materials affected by foreign object damage X35 Machine from the inlet flue gas intake of impurities X4 Hot surface roughness influenced by heat stress X36 Combination of oxide and sulfide reaction X5 Blade cooling effect falling X37 Temperature between corrosion temperature range X6 Rotor gap narrowed X38 The cooling failure X7 Semal edge plastic deformation X39 Formation of corrosive environment X8 Blade rubbing with static son X40 Corrosion cut the leaf size X9 Cooling coating material performance degradation X41 Reduce the fatigue strength of the blade X10 A thermometer socket pipe failure X42 High temperature caused by temperature control failure X11 Cooling channel blocking X43 Protective coating in the thermal cycle process of break Case analysis Case.
The causion of the blade fracture is that when thermal stress is greater than the yield stress of material.
(In Chinese) [3] Liu xiaobo, Sun kang: Journal of Jiangxi University of Science and Technology, Vol.27 (2006), No.1, p. 1-3.
(In Chinese) [4] S Borguet O, Léonard: Journal of Computational and Applied Mathematics, Vol.234 (2010), p. 2202-2212
Online since: May 2010
Authors: Ren Cheng Zhang, Jian Hua Du
The
extraction results of process eigenvectors of 9 candidate materials are shown in Fig. 1, where k=3.
(8) In order to inspect the validity of presented fire detection method, nine candidate materials were burn in fire laboratory.
Fire safety journal. 37 (2002), pp. 381-394
Fire Safety Journal, 22 (1994), pp. 181-205
Proc. of 2008 International Symposium on safety science and technology.
(8) In order to inspect the validity of presented fire detection method, nine candidate materials were burn in fire laboratory.
Fire safety journal. 37 (2002), pp. 381-394
Fire Safety Journal, 22 (1994), pp. 181-205
Proc. of 2008 International Symposium on safety science and technology.
Online since: October 2014
Authors: Li Jun Zhai, Jian Yong Liu, Yan Li
Shrouded turbine blisk often uses difficult-to-cut materials, such as nickel-base superalloy and titanium alloy.
However, it is hard for CNC milling to deal with difficult-to-cut materials, especially for blisk with small channels because of rigidity limit.
EDM is used for machining difficult-to-cut materials [5, 6].
[3] Tang M, Zhang D H, Luo M and Wu B H: Chinese Journal of Aeronautics 25 (2014) 131-136
[8] Zhu X X: Modeling Technology of Free-form Curve and Surface (in Chinese) (Science Press, Beijing 2000).
However, it is hard for CNC milling to deal with difficult-to-cut materials, especially for blisk with small channels because of rigidity limit.
EDM is used for machining difficult-to-cut materials [5, 6].
[3] Tang M, Zhang D H, Luo M and Wu B H: Chinese Journal of Aeronautics 25 (2014) 131-136
[8] Zhu X X: Modeling Technology of Free-form Curve and Surface (in Chinese) (Science Press, Beijing 2000).
Online since: September 2016
Authors: You Feng He, Qiang Zhu, Da Quan Li, Fan Zhang, Song Chen
Traditional clamp material is nodular cast iron.
The research was carried out with financial support from the National Science and Technology Support Program of China (2012BAE14G01) and the International Science and technology cooperation projects of China (2012DFA50300).
Comprehensive materials processing[M].
Journal of materials processing technology, 2006, 176(1): 32-40
Journal of materials processing technology, 2008, 204(1): 8-21
The research was carried out with financial support from the National Science and Technology Support Program of China (2012BAE14G01) and the International Science and technology cooperation projects of China (2012DFA50300).
Comprehensive materials processing[M].
Journal of materials processing technology, 2006, 176(1): 32-40
Journal of materials processing technology, 2008, 204(1): 8-21
Online since: April 2022
Authors: Li Xian Zhang, Yu Xiao Liu
We designed four groups of full crown with the whole anatomy structure and the same thickness to study the fracture resistance and failure modes among the ceramic crowns, to provide proof for their clinical use.
1 Materials and Methods
1.1 Materials and equipments
Huge #46 standard artificial resin tooth (Huge Dental, Shanghai, China), Silastic impression material(3M, Germany), CAD/CAM zirconia ignot, ShoFu veneering powder(ShoFu, Japan), IPS Press Speed Vest embedding material, IPS E.max press MO1 cast ceramic ignot, IPS E.max Ceram Glaze Paste, Zirconia Primer, EP3000 vacuum cast ceramic furnace(Ivoclar Vivadent, Liechtenstein); Adper Easy Self-Etch Adhensive, Unicem-200(3M, Germany), CAD/CAM software(3Shape, Denmark); CAD/CAM glass ceramic ignot, ceramic carving machine(Sirona, Germany); TH-8201S electric universal test machine (Tuobo machinery, China); Light-curing unit(Dentsply, USA); VMS250 3D FAMILY optical image instrument (Zhitai Co.
To consider the reason, firstly, perhaps it is because of the higher flexural strength of the Y-TZP(>900MPa), which is the main material of the whole zirconia crown.
Journal of Dental Materials and Techniques, 2019, 8(3): 114-120
Effect of veneering material and technique on the fracture resistance of porcelain-veneered zirconia crowns.
Saudi Journal of Oral Sciences, 2020, 7(1): 11-17
To consider the reason, firstly, perhaps it is because of the higher flexural strength of the Y-TZP(>900MPa), which is the main material of the whole zirconia crown.
Journal of Dental Materials and Techniques, 2019, 8(3): 114-120
Effect of veneering material and technique on the fracture resistance of porcelain-veneered zirconia crowns.
Saudi Journal of Oral Sciences, 2020, 7(1): 11-17
Online since: November 2011
Authors: Yong Mei Hou, Pei Cheng Hu, Mei Wang, Zhan Yu Mo
By improving the moods of patients, Psychological intervention can also improve the micro-circulation of bone marrow to enhance transport of blood-making materials and activity of bone marrow, improving the marrow reaction to blood-making materials. 3) Mental intervention can help cut down blood pressure, and increase patients’ endurance against rEPO.
Wu: Chinese Journal of Nephrology, Vol. 13 (1997) No.3, p.144
Zhang: Rating Scales for Behavioral Medicine (Publishing House of Chinese Journal of behavioral medical science, Jining, 2001).
Zhang: Journal of Chinese Mental Health. 16 (2002) 522-524
Zhang: Journal of Chinese Mental Health, Vol. 18 (2004) No., p.17.
Wu: Chinese Journal of Nephrology, Vol. 13 (1997) No.3, p.144
Zhang: Rating Scales for Behavioral Medicine (Publishing House of Chinese Journal of behavioral medical science, Jining, 2001).
Zhang: Journal of Chinese Mental Health. 16 (2002) 522-524
Zhang: Journal of Chinese Mental Health, Vol. 18 (2004) No., p.17.