Microstructure and Mechanical property of Porous Nickel aluminides Fabricated by Reactive Synthesis with Space Holder Powder

MRS Advances ◽  
2019 ◽  
Vol 4 (25-26) ◽  
pp. 1515-1521 ◽  
Author(s):  
Yunmao Shu ◽  
Asuka Suzuki ◽  
Naoki Takata ◽  
Makoto Kobashi
Keyword(s):  
High Performance ◽  
Nickel Aluminides ◽  
Compressive Property ◽  
Porous Nickel ◽  
Plateau Stress ◽  
Space Holder ◽  
Reactive Synthesis ◽  
Al Content ◽  
High Plateau ◽  
Good Energy

ABSTRACTEffect of Ni:Al blending ratio on porous structure of porous nickel aluminides fabricated through reactive synthesis with space holder particles were investigated. Fabricated porous nickel aluminides had large pores derived from NaCl space holder particles and small pores derived from reactions between Ni and Al. Porosity and size of the small pores increased with increasing Al content in the raw powder mixture. Compressive property of porous NiAl are also investigated. porous NiAl exhibited good energy-absorption properties with relatively high plateau stress, high plateau end strain, and relatively flat plateau stress. This study suggests the possibility of intermetallic-based porous materials as high-performance energy absorber.

3D-Hierarchical porous nickel sculptured by a simple redox process and its application in high-performance supercapacitors

2017 ◽  
Vol 5 (39) ◽  
pp. 20709-20719 ◽  
Author(s):  
Zhihong Wang ◽  
Yingming Yan ◽  
Yifu Chen ◽  
Wenqiao Han ◽  
Mengting Liu ◽  
...  
Keyword(s):  
High Temperatures ◽  
High Performance ◽  
Nickel Foam ◽  
Cost Effective ◽  
Redox Process ◽  
Gas Mixture ◽  
Porous Nickel ◽  
Hierarchical Porous ◽  
Sacrificial Materials

3D-Hierarchical micron porous nickel foam was created using a simple redox process in a CH4–O2 gas mixture at high temperatures. This process is simple and cost effective, avoiding the use of sacrificial materials or templates.

scholarly journals Hierarchically structured, highly porous nickel synthesized in sintering–evaporation process from a metal nanopowder and a space holder

2019 ◽  
Vol 484 (4) ◽  
pp. 436-440
Author(s):  
A. G. Gnedovets ◽  
V. A. Zelenskii ◽  
A. B. Ankudinov ◽  
M. I. Alymov
Keyword(s):  
Powder Metallurgy ◽  
Porous Material ◽  
Ammonium Bicarbonate ◽  
Evaporation Process ◽  
Porous Nickel ◽  
Space Holder ◽  
Nickel Nanopowder ◽  
Powder Metallurgy Methods ◽  
Highly Porous ◽  
Highly Porous Material

This paper reports on the creation of a highly porous material with a hierarchical structure using powder metallurgy methods based on nickel nanopowder and ammonium bicarbonate NH4HCO3 as a space holder.

Two-Dimensional, Porous Nickel–Cobalt Sulfide for High-Performance Asymmetric Supercapacitors

2015 ◽  
Vol 7 (34) ◽  
pp. 19316-19323 ◽  
Author(s):  
Xiaoming Li ◽  
Qiguang Li ◽  
Ye Wu ◽  
Muchen Rui ◽  
Haibo Zeng
Keyword(s):  
High Performance ◽  
Cobalt Sulfide ◽  
Two Dimensional ◽  
Porous Nickel ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt

scholarly journals Probing structural and chemical evolution in (AlxGa1−x)2O3 using atom probe tomography: A review

2021 ◽  
Author(s):  
Baishakhi Mazumder ◽  
Jith Sarker
Keyword(s):  
Chemical Evolution ◽  
Atom Probe Tomography ◽  
High Performance ◽  
Advanced Characterization ◽  
Atom Probe ◽  
Solubility Limit ◽  
Wide Bandgap ◽  
Machine Learning Algorithms ◽  
Al Content ◽  
Bandgap Semiconductors

Abstract(AlxGa1−x)2O3 is a novel ultra‐wide bandgap semiconductor with the potential to dominate future power electronics industries. High‐performance devices demand high Al content in (AlxGa1−x)2O3 but are limited by crystallinity degradation resulting from phase separation. Additionally, the solubility limit of Al is still under debate, and conclusive research is in progress. (AlxGa1−x)2O3 is also limited in high‐frequency applications owing to low carrier mobility and requires n‐type doping. For commercializing this material, the major obstacle is understanding dopant's behavior in the host (AlxGa1−x)2O3. To investigate these issues, an advanced characterization technique, atom probe tomography (APT), was employed to analyze the structural‐chemical evolution of (AlxGa1−x)2O3. In this review, we summarized our recent works on the structure‐chemistry investigation of (AlxGa1−x)2O3 with alloy composition and doping interaction. We introduced machine learning algorithms on APT data to reveal unrivaled knowledge, previously not achievable with conventional methodologies. The outstanding capabilities of APT to study (AlxGa1−x)2O3 with Al composition and doping will be considered significant for the wide bandgap semiconductors community.

Study on Energy-Saving Residential Building Structures of Multi-Ribbed Composite Walls with High Performance Concrete

2006 ◽  
Vol 302-303 ◽  
pp. 444-450
Author(s):  
Yin Zhang ◽  
Qian Feng Yao ◽  
Yong Gang Ding
Keyword(s):  
Energy Saving ◽  
High Performance ◽  
High Performance Concrete ◽  
Residential Building ◽  
Economic Benefits ◽  
Building Structures ◽  
New Energy ◽  
Good Energy ◽  
Saving Effect ◽  
Seismic Behaviors

In this paper, the study and application of an entirely new energy-saving residential building structure, whose wall is constructed with multi-ribbed composite wall and latent frame. Based on experimental research and theoretical analysis, it was found that the structure system had good seismic behaviors, strong structure adaptability and good energy-saving effect. At the same time, notable social and economic benefits have been shown in several examples.

scholarly journals Correction: Two-dimensional porous nickel oxalate thin sheets constructed by ultrathin nanosheets as electrode materials for high-performance aqueous supercapacitors

CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3242-3242
Author(s):  
Chenglan Zhao ◽  
Yuqian Jiang ◽  
Shunfei Liang ◽  
Fang Gao ◽  
Li Xie ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Thin Sheets ◽  
Two Dimensional ◽  
Porous Nickel ◽  
Nickel Oxalate ◽  
Ultrathin Nanosheets

Correction for ‘Two-dimensional porous nickel oxalate thin sheets constructed by ultrathin nanosheets as electrode materials for high-performance aqueous supercapacitors’ by Chenglan Zhao et al., CrystEngComm, 2020, DOI: 10.1039/d0ce00268b.

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