scholarly journals Decelerated aging in metallic glasses by low temperature thermal cycling

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Marian Bruns ◽  
Muhammad Hassani ◽  
Fathollah Varnik ◽  
Afrouz Hassanpour ◽  
Sergyi Divinski ◽  
...  
Keyword(s):  
Low Temperature ◽  
Thermal Cycling ◽  
Metallic Glasses

Low temperature transport properties of Ce-Al metallic glasses

2011 ◽  
Vol 109 (11) ◽  
pp. 113716 ◽  
Author(s):  
Q. S. Zeng ◽  
C. R. Rotundu ◽  
W. L. Mao ◽  
J. H. Dai ◽  
Y. M. Xiao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Transport Properties ◽  
Metallic Glasses

Development of low temperature sintered nano silver pastes using MO technology and resin reinforcing technology

2014 ◽  
Vol 2014 (HITEC) ◽  
pp. 000172-000177
Author(s):  
Koji Sasaki ◽  
Noritsuka Mizumura
Keyword(s):  
Shear Strength ◽  
Low Temperature ◽  
Thermal Cycling ◽  
Thick Film ◽  
Thermal Performance ◽  
Low Temperature Sintering ◽  
Thermal Cycling Test ◽  
Nano Silver ◽  
Cycling Test ◽  
Thick Film Technology

Traditional thick film technology is widely used in various electronics products. There are two type of paste based on thick film technology. Typically, over 400°C is required for high temperature sintering type which contains glass for adhesion function. It shows high electrical and thermal performance. On the other hand, 150–300°C range process is used for low temperature process type as silver epoxy. In last decade, nano silver technology shows amazing progress to address low temperature operation by low temperature sintering. This paper will discuss the results on fundamental study of newly developed nano silver pastes with unique approach which uses MO (Metallo-organic) technology and resin reinforcing technology. Nano silver pastes contain several types of dispersant as surface coating to prevent agglomeration of the particles. Various coating technique has been reported to optimize sintering performance and stability. MO technology provides low temperature sintering capability by minimizing the coating material. The nano silver pastes show high electrical and thermal performance. However, degradation of die shear strength has been found by thermal cycling test due to the fragility of porous sintered structure. To improve the mechanical property, resin reinforcing technology has been developed. By adding special resin to the pastes, the porous area is filled with the resin and the sintered structure is reinforced. Degradation of die shear strength was not found by thermal cycling test to 1000 cycles. Nano silver pastes using MO technology and resin reinforcing technology will meet lots of requirement on various thick film applications.

The Future of Solder Joint Encapsulant

2015 ◽  
Vol 2015 (1) ◽  
pp. 000644-000648
Author(s):  
Mary Liu ◽  
Wusheng Yin
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Solder Joint ◽  
Thermal Cycling ◽  
Lower Cost ◽  
Solder Joints ◽  
Cost Of Ownership ◽  
The Future ◽  
High Temperature Solder

Solder joint encapsulant adhesives have been successfully used to enhance the strength of solder joints and improve thermal cycling as well as drop performance in finished products. The use of solder joint encapsulant adhesives can eliminate the need for underfill materials and the underfill process altogether, thus simplifying rework, which results in a lower cost of ownership. Solder joint encapsulant adhesives include: low temperature and high temperature solder joint encapsulant adhesives, and their derivatives. Each solder joint encapsulant adhesive has: unfilled and filled solder joint encapsulant adhesives, and solder joint encapsulant paste. Each solder joint encapsulant product has been designed for different applications. In this paper, we are going to discuss the details and future of solder joint encapsulant adhesives.

Stimulation of shear-transformation zones in metallic glasses by cryogenic thermal cycling

2020 ◽  
Vol 548 ◽  
pp. 120299 ◽  
Author(s):  
C.M. Meylan ◽  
F. Papparotto ◽  
S. Nachum ◽  
J. Orava ◽  
M. Miglierini ◽  
...  
Keyword(s):  
Thermal Cycling ◽  
Metallic Glasses ◽  
Shear Transformation ◽  
Shear Transformation Zones ◽  
Stimulation Of

Novel corrosion behaviours of the annealing and cryogenic thermal cycling treated Ti-based metallic glasses

2019 ◽  
Vol 110 ◽  
pp. 106467 ◽  
Author(s):  
Jialun Gu ◽  
Yang Shao ◽  
Lingxiang Shi ◽  
Jiajia Si ◽  
Kefu Yao
Keyword(s):  
Thermal Cycling ◽  
Metallic Glasses

Low-temperature acoustic properties of metallic glasses

1993 ◽  
Vol 47 (9) ◽  
pp. 4922-4936 ◽  
Author(s):  
S. N. Coppersmith ◽  
Brage Golding
Keyword(s):  
Low Temperature ◽  
Metallic Glasses ◽  
Acoustic Properties
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