Effects of bismuth on the microstructure and crack propagation in Sn-Ag-Cu-Bi solder joints during thermal cycling [0.03%]
铋对Sn-Ag-Cu-Bi焊点组织和热 Cycling 裂纹扩展行为的影响
C L Hsieh,R J Coyle,S A Belyakov et al.
C L Hsieh et al.
Bismuth is added to Sn-Ag-Cu-based solders to increase strength and solder joint reliability but accelerated thermal cycling (ATC) tests have shown variable thermal fatigue performance. To better understand their thermal fatigue mechanisms,...
High-quality polycrystalline vanadium dioxide thin films deposited via pulsed laser deposition with high uniformity and consistency [0.03%]
一种利用脉冲激光沉积制备高性能氧化钒多晶薄膜的方法
Zhixiang Huang,Kyle Laskowski,Sai Rahul Sitaram et al.
Zhixiang Huang et al.
Vanadium dioxide (VO2) is a phase transition material that experiences significant shifts in electrical, optical, and mechanical properties near its transition temperature. Among various methods for depositing VO2 thin films, pulsed laser d...
Effects of Ag and melt undercooling on the microstructure of Sn-Ag solder balls [0.03%]
Ag和熔体过冷对Sn-Ag焊球显微组织的影响
Sihan Sun,Ao Li,Chao Cheng et al.
Sihan Sun et al.
The microstructure of electronic solder joints is created by solidification in an undercooled melt. Here, we apply the framework of solidification microstructure selection maps (SMSMs) to Sn-Ag solder balls with compositions from 0.5 to 5.0...
Nano-probe for determination of phenobarbital of green synthesized fluorescent carbon dots using Scrophularia striata [0.03%]
采用玄参根绿合成荧光碳点纳米探针检测苯巴比妥钠
Afsoon Mohammadi,Nahid Haghnazari,Changiz Karami
Afsoon Mohammadi
In this study, using a thirsty plant extract and a simple hydrothermal method, a nano-probe was introduced to detect the phenobarbital based on fluorescence. Functional groups, particle size, surface morphology, and types of elements were i...
Green synthesized fluorescent carbon dots from oak apple for detection of efavirenz [0.03%]
利用橡椀提取绿色荧光碳点检测埃夫洛维zen
Afsoon Mohammadi,Nahid Haghnazari,Changiz Karami
Afsoon Mohammadi
In this study, a facile synthesis of fluorescence carbon dots (CDs) from local oak apple (O-CDs) in the mountainous region of Zagros was performed through hydrothermal treatment. The characterization of O-CDs was carried out by SEM, TEM, FT...
ZnO/NiO heterostructure-based microsensors used in formaldehyde detection at room temperature: Influence of the sensor operating voltage [0.03%]
用于室温甲醛检测的ZnO/NiO异质结构微传感器：工作电压对传感器的影响
Mariana Chelu,Paul Chesler,Mihai Anastasescu et al.
Mariana Chelu et al.
Recently the emissions of volatile organic compounds (VOCs) in the atmosphere have increased dramatically with rapid development of urbanization and industry. This led to a large decline in air quality around the world, which resulted in a ...
Cost-effective Bi2WO6 for efficient degradation of rhodamine B and tetracycline [0.03%]
低成本的Bi2WO6高效降解若丹明B和四环素催化剂
Bingdong Yao,Guangwei Zheng,Yina Luan et al.
Bingdong Yao et al.
The morphology-controlled synthesis of nanostructured photocatalysts by an environmentally friendly and low-cost method provides a feasible way to realize practical applications of photocatalysts. Herein, Bi2WO6 (BWO) nanophotocatalysts wit...
High-performance LPG sensing behaviour of CoCr2-xCexO4 (x = 0 to 0.02) for sensor applications [0.03%]
高性能CoCr2-xCexO4(x=0至0.02)丙烷气体传感器行为研究
V Jagadeesha Angadi,Apsar Pasha,M Al-Dossari et al.
V Jagadeesha Angadi et al.
For the first time, the influence of Cerium (Ce3+) on the structural, microstructural, Fourier infrared spectroscopy, and LPG sensing behaviour of CoCr2-xCexO4 (CoCrCe) is described in this study. The solution combustion technique was used ...
Visible photon avalanche up-conversion of Yb3+ and Ho3+ doped NaBi(WO4)2 phosphors under excitation at 980 nm [0.03%]
在980nm激发下Yb3+和Ho3+共掺NaBi(WO4)2上转换发光粉的可见光上转换机制研究
Haiyue Qian,Tianqing Zhang,Xiliang Jiang et al.
Haiyue Qian et al.
Avalanche phenomenon uses critical pump power to produce extreme nonlinear behavior from small disturbances, and has gradually become known. Here, it is reported that the strong green up-conversion emission produced in NaBi(WO4)2 phosphor b...
Microstructure evolution, IMC growth, and microhardness of Cu, Ni, Ag-microalloyed Sn-5Sb/Cu solder joints under isothermal aging [0.03%]
铜镍银微合金化Sn-5Sb/Cu共晶焊点的等温时效组织演变、IMC生长及硬度变化规律
Meiling Xin,Xiuqi Wang,Fenglian Sun
Meiling Xin
In this work, various Cu, Ni, Ag-microalloyed Sn-5Sb/Cu joints, ordinary Sn-5Sb/Cu joints, and low-melting-point Sn-3Ag-0.5Cu (SAC305)/Cu (used for comparison) were prepared, focusing on the influence of Cu, Ni, and Ag on the microstructure...