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Online since: January 2016
Authors: Nicola Zuelli, Mark Farrell, Christopher Fleming, Luke Robinson, Remi Zante
Severe defects have been found to correspond to tool regions where a foreign material, exhibiting regular and definite distribution patterns, strongly adheres.
The lower region of the cross sections was comprised of tool material that was more strongly bound to the deposits than the parent tool.
The materials deposited on the simulator tools throughout each trial visually appeared to comprise of Ti64 scale and h-BN which is consistent with production SPF observations and the findings described earlier in this proceedings.
Journal of the American Ceramic Society, 2013. 96(6): p. 1877-1882
Journal of Materials Science, 1993. 28(24): p. 6562-6566.
The lower region of the cross sections was comprised of tool material that was more strongly bound to the deposits than the parent tool.
The materials deposited on the simulator tools throughout each trial visually appeared to comprise of Ti64 scale and h-BN which is consistent with production SPF observations and the findings described earlier in this proceedings.
Journal of the American Ceramic Society, 2013. 96(6): p. 1877-1882
Journal of Materials Science, 1993. 28(24): p. 6562-6566.
Online since: March 2014
Authors: Eberhard Kerscher, Daniel Spriestersbach, Patrick Grad
International Journal of Fatigue 11 (1989) 5, 291-198
[4] T.
Fatigue and Fracture of Engineering Materials and Structures 25 (2002) 8-9, 765-773 [5] K.
International Journal of Fatigue 28 (2006) 11, 1521-1532 [6] C.
Materials Science and Technology 28 (2012) 1, 27-33 [7] S.
International Journal of Minerals, Metallurgy and Materials 20 (2013), 360-364 [12] J.
Fatigue and Fracture of Engineering Materials and Structures 25 (2002) 8-9, 765-773 [5] K.
International Journal of Fatigue 28 (2006) 11, 1521-1532 [6] C.
Materials Science and Technology 28 (2012) 1, 27-33 [7] S.
International Journal of Minerals, Metallurgy and Materials 20 (2013), 360-364 [12] J.
Online since: June 2012
Authors: Xin Bing Zhao, Ping Liu, Xiao Long Gu, Xiao Gang Liu
Au plating failure prevention on the electronic industry
Xiaogang Liu1, Ping Liu1,2,a, Xiaolong Gu1, Xinbing Zhao2
1Zhejiang Province Key Laboratory of Soldering & Brazing Materials and Technology, Zhejiang Metallurgical Research Institute, Hangzhou 310011, PR China
2Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
aliuping_davy@yahoo.com.cn
Keywords: Au plating, selective plating, Au embrittleness, tombstone, Mercury attack
Abstract.
Table 1 Resistivity and contact resistance of contact materials Contact Material Resistivity Ωcm Contact Resistance(2)mΩ Pure gold 2.4x10-8 0.8 Cobalt hardened gold 2.4x10-8 2.6-2.8 Palladium on nickel 1.08x10-7 3.1-5.8 Silver 1.6x10-8 Not determined It was reported that a GPS antenna failure occurred in an engineering evaluation of a new product.
Acknowledgements The authors would like to acknowledge the financial support provided by Zhejiang Provincial Natural Science Foundation of China under Grant No.
Y4100809, Zhejiang Science and Technology Commission of China under Grant No. 2010F20002 and thank Motorola Material Failure Analysis Laboratory for cases sharing.
KAO, Formation and Resettlement of (AuxNi1-x)Sn4 in Solder Joints of Ball-Grid-Array Packages with the Au/Ni Surface Finish, Journal of electronic materials, 2000, 29(10), 1175-1181 [3] Selective plating of gold without environmental hazards, materials & design, 1991, 12(5), 289 [4] John R.
Table 1 Resistivity and contact resistance of contact materials Contact Material Resistivity Ωcm Contact Resistance(2)mΩ Pure gold 2.4x10-8 0.8 Cobalt hardened gold 2.4x10-8 2.6-2.8 Palladium on nickel 1.08x10-7 3.1-5.8 Silver 1.6x10-8 Not determined It was reported that a GPS antenna failure occurred in an engineering evaluation of a new product.
Acknowledgements The authors would like to acknowledge the financial support provided by Zhejiang Provincial Natural Science Foundation of China under Grant No.
Y4100809, Zhejiang Science and Technology Commission of China under Grant No. 2010F20002 and thank Motorola Material Failure Analysis Laboratory for cases sharing.
KAO, Formation and Resettlement of (AuxNi1-x)Sn4 in Solder Joints of Ball-Grid-Array Packages with the Au/Ni Surface Finish, Journal of electronic materials, 2000, 29(10), 1175-1181 [3] Selective plating of gold without environmental hazards, materials & design, 1991, 12(5), 289 [4] John R.
Online since: July 2011
Authors: Claus Gerdes, Mohamed Nazmy
Materials and Experimental Procedure
The materials used in this investigation were acquired in the form of round bars.
Wickens, “ Some Effects of the Ordering Transformation in Nimonic 80A on Stress Relaxation Behaviour”, in Materials Science and Engineering, 67, pp. 157-162, 1984
[5] A.Marucco and B.Nath, “Effect of ordering on the properties of Ni-Cr alloys”, in Journal of Materials Science 23, pp.2107-2114, 1988
[7] E.Lang, V.Lupinc and A Marucco, “Effect of Thermomechanical Treatments on Short-range Ordering and Secondary-phase Precipitation in Ni-Cr based Alloys”, in Materials Science and Engineering, A114, pp.147-157, 1989
[8] A.Marucco, “Effect of Composition on The Order-Disorder Transformation in Ni-Cr Based Alloys”, in Key Engineering Materials Vols.48, pp.77-90, 1990
Wickens, “ Some Effects of the Ordering Transformation in Nimonic 80A on Stress Relaxation Behaviour”, in Materials Science and Engineering, 67, pp. 157-162, 1984
[5] A.Marucco and B.Nath, “Effect of ordering on the properties of Ni-Cr alloys”, in Journal of Materials Science 23, pp.2107-2114, 1988
[7] E.Lang, V.Lupinc and A Marucco, “Effect of Thermomechanical Treatments on Short-range Ordering and Secondary-phase Precipitation in Ni-Cr based Alloys”, in Materials Science and Engineering, A114, pp.147-157, 1989
[8] A.Marucco, “Effect of Composition on The Order-Disorder Transformation in Ni-Cr Based Alloys”, in Key Engineering Materials Vols.48, pp.77-90, 1990
Online since: April 2005
Authors: I.G. Turner, A.W. Miles, J.P. Gittings
Introduction
Synthetic CaP bioceramics have been used successfully as bone substitute materials for over thirty
years [1].
Krajewski: Materials Science Forum.
Heughebaert: Journal of Mat.
Liu: Materials Science Forum.
Liebetrau: Bioceramics 14: Key Engineering Materials.
Krajewski: Materials Science Forum.
Heughebaert: Journal of Mat.
Liu: Materials Science Forum.
Liebetrau: Bioceramics 14: Key Engineering Materials.
Online since: October 2013
Authors: Shou Zhi Zhang, An Qun Lu, Qian Tian
In order to improve the shrinkage cracking resistance of high performance concrete, a new type of CaO-based expansive agent has been newly developed in Jiangsu Bote New Materials Co.
Experimental Materials.
The chemical compositions of the cementitious materials are shown in Table 1.
A new type of CaO-based expansive agent was used, which was newly developed in Jiangsu Bote New Materials Co.Ltd.
Davalos, Arkamitra Kar, Shrinkage and cracking studies of high performance concrete for bridge decks, Construction and Building Materials, 28 (2012) 244-254
Experimental Materials.
The chemical compositions of the cementitious materials are shown in Table 1.
A new type of CaO-based expansive agent was used, which was newly developed in Jiangsu Bote New Materials Co.Ltd.
Davalos, Arkamitra Kar, Shrinkage and cracking studies of high performance concrete for bridge decks, Construction and Building Materials, 28 (2012) 244-254
Online since: December 2010
Authors: Zi Li Yan, Tian Ma, Ling Xuan Meng, Jian Min Gao
Besides, researchers employed ore materials such as petroleum coke to prepare the pure carbonaceous preforms [3].
Experimental Materials.
And sintered materials, which have a density of 3.07 g/cm3 and a bending strength of 430 MPa, can be obtained with the method to prepare the pure carbon preform.
Guo, et al.: Journal of Inorganic Materials.
Chen: Preparation and Characterization of Porous Materials (University of Science and Technology of China Press, Hefei, China, 2010)
Experimental Materials.
And sintered materials, which have a density of 3.07 g/cm3 and a bending strength of 430 MPa, can be obtained with the method to prepare the pure carbon preform.
Guo, et al.: Journal of Inorganic Materials.
Chen: Preparation and Characterization of Porous Materials (University of Science and Technology of China Press, Hefei, China, 2010)
Online since: March 2024
Authors: K. Hari Ram, D.S. Jenaris, P. Mohan, R. Rethan Raj, D.S. Manoj Abraham
Applied Surface Science, 255(15), pp.6862-6869
Bernecki (Eds.), Thermal Spray Coatings: Research, Design and Applications, ASM International, Materials Park, Ohio, USA, 1993, p. 405
Berndt (Ed.), Proceedings of the International Thermal Spray Conference and Exposition, ASM International, Materials Park, Ohio, 1992, p. 127 [9] C.J.
ASM International, Materials Park, p 556 and 1107 [12] Hillery, R.V., 1986.
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 4(6), pp.2624-2628
Bernecki (Eds.), Thermal Spray Coatings: Research, Design and Applications, ASM International, Materials Park, Ohio, USA, 1993, p. 405
Berndt (Ed.), Proceedings of the International Thermal Spray Conference and Exposition, ASM International, Materials Park, Ohio, 1992, p. 127 [9] C.J.
ASM International, Materials Park, p 556 and 1107 [12] Hillery, R.V., 1986.
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 4(6), pp.2624-2628
Online since: November 2011
Authors: Bu Xin Su, Jian Liang Zhang, Hong Wei Guo, Jian Chang, Wei Chao Cao, Shan Ren
(1)
where n refers to the total numbers of raw materials, including iron ores, fluxes and fuels, and yi is the remains of materials i
(2) where Xi is the consumption without water of raw materials i, WQi is the water content of raw materials i, and ai,bi refer to the upper limit and lower limit of the percentile amount of raw materials i
The chemical compositions in the raw materials all remain in the sinter except that S loses its 90% in sintering
Beijing: Science Press, 1994.
Journal of University of Science and Technology Beijing, 2002, 24(3): 254-257
(2) where Xi is the consumption without water of raw materials i, WQi is the water content of raw materials i, and ai,bi refer to the upper limit and lower limit of the percentile amount of raw materials i
The chemical compositions in the raw materials all remain in the sinter except that S loses its 90% in sintering
Beijing: Science Press, 1994.
Journal of University of Science and Technology Beijing, 2002, 24(3): 254-257
Online since: January 2013
Authors: Hsien Chang Shih, Sheam Chyun Lin
In general, the major problem with nano technology is caused by little understanding about the basic behaviors of material components and constructions in the nano scale.
The central island of SET is made by any kind of electrically conductive material, which is usually in the size of several hundred nanometers.
Kunitake, Applied Clay Science, 11 February (1999), Vol. 15, pp. 137-152
Hilbers, International Journal of Thermal Sciences, (2006),Vol. 45, pp. 1197-1204
Hilbers, Journal of Computational Physics, (2006), Vol. 219, pp. 532-552,
The central island of SET is made by any kind of electrically conductive material, which is usually in the size of several hundred nanometers.
Kunitake, Applied Clay Science, 11 February (1999), Vol. 15, pp. 137-152
Hilbers, International Journal of Thermal Sciences, (2006),Vol. 45, pp. 1197-1204
Hilbers, Journal of Computational Physics, (2006), Vol. 219, pp. 532-552,