New approach to enhance the NOx storage performance at high temperature using basic MgAl2O4 spinel support

2007 ◽  
Vol 77 (1-2) ◽  
pp. 73-78 ◽  
Author(s):  
Naoki Takahashi ◽  
Shin’ichi Matsunaga ◽  
Toshiyuki Tanaka ◽  
Hideo Sobukawa ◽  
Hirofumi Shinjoh
Author(s):  
T. Sand ◽  
A. Edgren ◽  
C. Geers ◽  
V. Asokan ◽  
J. Eklund ◽  
...  

AbstractA new approach to reduce the chromium and aluminium concentrations in FeCrAl alloys without significantly impairing corrosion resistance is to alloy with 1–2 wt.% silicon. This paper investigates the “silicon effect” on oxidation by comparing the oxidation behavior and scale microstructure of two FeCrAl alloys, one alloyed with silicon and the other not, in dry and wet air at 600 °C and 800 °C. Both alloys formed thin protective oxide scales and the Cr-evaporation rates were small. In wet air at 800 °C the Si-alloyed FeCrAl formed an oxide scale containing mullite and tridymite together with α- and γ-alumina. It is suggested that the reported improvement of the corrosion resistance of Al- and Cr-lean FeCrAl’s by silicon alloying is caused by the appearance of Si-rich phases in the scale.


2017 ◽  
Vol 31 (25) ◽  
pp. 1745001 ◽  
Author(s):  
Qiudong Guo ◽  
Peng Zhang ◽  
Lin Bo ◽  
Guibin Zeng ◽  
Dengqian Li ◽  
...  

With the rapid development of manufacturing technology of high temperature superconductive YB[Formula: see text]Cu3O[Formula: see text] YBCO materials and decreasing in cost of production, YBCO is marching into industrial areas with its good performances as source of high-magnetic field and rather low cost in reaching superconductivity. Based on analysis of the performance of high temperature superconductors YBCO and development of technology in superconductive magnetic separation both home and abroad, we propose a new approach of taking YBCO tape to make a solenoid as the source of a high magnetic field of magnetic separatior of ores. The paper also looks into the future of the YBCO high temperature superconductive magnetic separation from the perspective of technology and cost, as well as its applications in other industries.


Author(s):  
Yuji Yoshiyama ◽  
Saburo Hosokawa ◽  
Kazuki Tamai ◽  
Takanobu Kajino ◽  
Hiroaki Yoto ◽  
...  

2019 ◽  
Vol 35 (12) ◽  
pp. 1357-1364 ◽  
Author(s):  
Hui LI ◽  
◽  
Shuangyu LIU ◽  
Huiming WANG ◽  
Bo WANG ◽  
...  

Small ◽  
2019 ◽  
Vol 15 (36) ◽  
pp. 1902236 ◽  
Author(s):  
Yong Zhang ◽  
Masashi Konya ◽  
Ayaka Kutsuma ◽  
Seonghyeon Lim ◽  
Toshihiko Mandai ◽  
...  

2004 ◽  
Vol 97 (2-3) ◽  
pp. 131-139 ◽  
Author(s):  
Petr Kočí ◽  
Miloš Marek ◽  
Milan Kubíček ◽  
Teuvo Maunula ◽  
Matti Härkönen

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