Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Xu XiangPing"'
Publikováno v:
High Temperature Materials and Processes, Vol 38, Iss 2019, Pp 651-661 (2019)
The changes that occur in the microstructure of crystalline and amorphous Cu-P-Sn-Ni filler metals during the heating process were studied by high-temperature microscopy, and the composition of solders at certain temperatures were analyzed by scannin
Externí odkaz:
https://doaj.org/article/14a882284ef74bc78418b3ee18eb5514
Publikováno v:
Science and Engineering of Composite Materials, Vol 25, Iss 3, Pp 463-472 (2018)
W-Cu alloy and 1Cr18Ni9 steel were brazed with NiCrSiBFeTi and NiMnSiCuZr filler metals in a vacuum furnace. The main microstructure of the NiCrSiBFeTi brazing seam region was a Ni-based solid solution of W, Cu, Cr, and Fe dissolved in the Ni phase a
Externí odkaz:
https://doaj.org/article/c580c52044824821a6735f3e1be5fa7b
Publikováno v:
Science and Engineering of Composite Materials, Vol 25, Iss 1, Pp 17-23 (2018)
W75-Cu and W55-Cu alloys were brazed with a Cu-based filler metal under the process parameters of a brazing temperature of 1060°C and a holding time of 30 min in a vacuum furnace with a vacuum level >6×10-3 Pa. The microstructure, element distribut
Externí odkaz:
https://doaj.org/article/9cd2324faed84bbda7d1934f8622da48
The accelerated method in solving optimization problems has always been an absorbing topic. Based on the fixed-time (FxT) stability of nonlinear dynamical systems, we provide a unified approach for designing FxT gradient flows (FxTGFs). First, a gene
Externí odkaz:
http://arxiv.org/abs/2311.06848
This paper proposes an extended zero-gradient-sum (EZGS) approach for solving constrained distributed optimization (DO) with free initialization. A Newton-based continuous-time algorithm (CTA) is first designed for general constrained optimization an
Externí odkaz:
http://arxiv.org/abs/2308.13743
Publikováno v:
Science and Engineering of Composite Materials, Vol 22, Iss 3, Pp 245-250 (2015)
This thesis is a discussion on obtaining a vacuum brazing joint of W-Cu alloy and 18-8 stainless steel with Cu-Mn-Co filler metal under the process parameter of a brazing temperature of 1060°C and holding time of 1 h. Four-point bending strength was
Externí odkaz:
https://doaj.org/article/336bc0d2e92f4a0ebe9da0c54d083dc1
Publikováno v:
In Journal of Hazardous Materials 5 November 2024 479
Publikováno v:
In Heliyon 15 October 2024 10(19)
Publikováno v:
In Neural Networks October 2024 178
Publikováno v:
In Neuroscience 23 July 2024 551:166-176