서지주요정보
$MmNi_{4.5}Al_{0.5}Zr_x$ (x=0.0-0.2) 합금의 수소화 반응특성에 미치는 excess Zr의 영향 = The effect of the exess Zr on the hydrogenation properties of $MmNi_{4.5}Al_{0.5}Zr_x$ (x=0.0-0.2) alloys
서명 / 저자 $MmNi_{4.5}Al_{0.5}Zr_x$ (x=0.0-0.2) 합금의 수소화 반응특성에 미치는 excess Zr의 영향 = The effect of the exess Zr on the hydrogenation properties of $MmNi_{4.5}Al_{0.5}Zr_x$ (x=0.0-0.2) alloys / 나영상.
발행사항 [대전 : 한국과학기술원, 1993].
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소장정보

등록번호

8003791

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 93004

휴대폰 전송

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리뷰정보

초록정보

In order to improve the hydrogen storage capacity and the activation property of the $MmNi_{4.5}Al_{0.5}$ alloy, the multiphase alloy systems are prepared by adding the excess Zr in $MmNi_{4.5}Al_{0.5}$ alloy. It is estimated from the x-ray diffaction pattern and the energy dispersive x-ray analysis that the 2nd phases in $MmNi_{4.5}Al_{0.5}Zr_x$ alloys have the basic composition of $ZrNi_3$, β-Zr. Among the 2nd phases observed from the above experiments, the main 2nd phase is $ZrNi_3$, which has the excellent catalytic effect on the hydrogen dissociation. As the Zr contents increase the activation property of the $MmNi_{4.5}Al_{0.5}Zr_x$ is improved due to the excellent catalytic effect on the hydrogen dissociation of $ZrNi_3$ phase. The hydrogen storage capacity shows maxima at x=0.05 in $MmNi_{4.5}Al_{0.5}Zr_x$ (x=0.0 - 0.2) alloys. As the Zr contents exceeds 0.05, the hydrogen storage capacity decrease because amount of the 2nd phases which do not form a hydride ($ZrNi_3$) or absorb irreversibly hydrogen (β-Zr) increase with Zr contents in $MmNi_{4.5}Zr_x$ alloys. As the Zr contents increase the plateau pressure decrease, sloping of the plateau pressure increase. The $MmNi_{4.5}Al_{0.5}Zr_{0.05}$ alloy, which shows the maximum storage capacity and the strong resistance to pressure cycling, is considered as a proper alloy for hydrogen storage.

서지기타정보

서지기타정보
청구기호 {MMS 93004
형태사항 [iii], 41 p. : 삽화 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Young-Sang Na
지도교수의 한글표기 : 이재영
지도교수의 영문표기 : Jai-Young Lee
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 38-41
주제 Hydrogenation.
Intermetallic compounds.
Catalysts.
수소화 처리. --과학기술용어시소러스
금속간 화합물. --과학기술용어시소러스
금속 촉매. --과학기술용어시소러스
수소 저장 합금. --과학기술용어시소러스
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