Catalytic Properties of Ni&lt;sub&gt;3&lt;/sub&gt;Al for Hydrogen Production Reactions

Xu, Ya; Kameoka, Satoshi; Kishida, Kyosuke; Demura, Masahiko; Tsai, A. P.; Hirano, Tôru

doi:10.4028/www.scientific.net/msf.475-479.755

Cited by 6 publications

(6 citation statements)

References 12 publications

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“…Our previous TEM observation revealed that each band had a single brass texture [11]. Thus, two kinds of bands, (110) [-112] and (110) [1][2][3][4][5][6][7][8][9][10][11][12], which were alternately located in the transverse direction, formed the dual Brass textures in total.…”

Section: Resultsmentioning

confidence: 99%

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Texture memory effect in heavily cold-rolled Ni3Al single crystals

Demura

Kishida

et al. 2007

Acta Materialia

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The paper presented the texture evolution during primary recrystallization and following grain growth in the heavily cold-rolled Ni 3 Al single crystals. It turned out that the texture evolution occurred in the two stages. First, primary recrystallization caused the drastic change of the as-rolled texture. Then, as grain growth proceeded, the texture returned to the same one as the as-rolled textures. This texture return can be designated as Texture memory effect. The mechanism of the texture memory effect was discussed based on the analysis of the orientation relationship between the as-rolled and the primary recrystallization textures. Goss 84 366 Goss 95 84 Dual Brass 95 113

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Section: Resultsmentioning

confidence: 99%

“…We have developed Ni 3 Al foils for high-temperature micro chemical devices [1][2][3][4][5][6]. For the application there are serious concerns about the brittleness in the foils, especially in the recrystallized state, since the polycrystalline Ni 3 Al is generally brittle due to the grain boundary (GB) fracture.…”

Section: Introductionmentioning

confidence: 99%

Texture memory effect in heavily cold-rolled Ni3Al single crystals

Demura

Kishida

et al. 2007

Acta Materialia

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Texture Memory Effect in Heavily Cold-Rolled Ni<sub>3</sub>Al Single Crystals

Demura

Hirano

2007

MSF

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Abstract. The paper presented the texture evolution during primary recrystallization and following grain growth in the heavily cold-rolled Ni 3 Al single crystals. It turned out that the texture evolution occurred in the two stages. First, primary recrystallization caused the drastic change of the as-rolled texture. Then, as grain growth proceeded, the texture returned to the same one as the as-rolled textures. This texture return can be designated as Texture memory effect. The mechanism of the texture memory effect was discussed based on the analysis of the orientation relationship between the as-rolled and the primary recrystallization textures.

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“…We've recently developed their foils by cold rolling [2][3][4][5][6], which became possible using single crystalline ingots as a starting material [7]. Furthermore, we've found that they exhibit a catalytic activity for hydrogen production reactions such as methanol decomposition [8][9][10][11][12] and methane steam reforming [13,14]. Thus, the Ni 3 Al based foils can be used as a container and a catalyst in the micro chemical reactor for hydrogen production consequently.…”

Section: Introductionmentioning

confidence: 99%

Recrystallization Textures in Heavily Cold-Rolled Ni<sub>3</sub>Al Based Single Crystals

Demura¹,

Xu²,

Hirano³

2010

MSF

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Abstract. Texture evolution during recrystallization and grain growth was examined for a Ni 3 Al/Ni two-phase single crystal (binary Ni-18 at.% Al) 83% cold-rolled, then compared with that for a Ni 3 Al single-phase single crystal (Ni-24 at.% Al). The cold-rolled single crystal had a sharp {110}<001> (Goss) texture. When it was recrystallized at 873K, the texture changed into a complicated one consisting of several components. Most of them had a special rotation relationship to the original Goss texture, i.e. 40˚ about <111>, which special relationship was similarly observed in the single-phase case. The 40˚<111> texture became shaper with no quantitative change as the grain growth proceeded. This high stability of the recrystallized texture contrasted with the single-phase case in which the authors previously found that the texture returned to the original Goss texture. The difference was discussed based on the orientation analysis by an electron backscattered diffraction method.

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Catalytic Properties of Ni<sub>3</sub>Al for Hydrogen Production Reactions

Cited by 6 publications

References 12 publications

Texture memory effect in heavily cold-rolled Ni3Al single crystals

Texture memory effect in heavily cold-rolled Ni3Al single crystals

Texture Memory Effect in Heavily Cold-Rolled Ni<sub>3</sub>Al Single Crystals

Recrystallization Textures in Heavily Cold-Rolled Ni<sub>3</sub>Al Based Single Crystals

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