서지주요정보
$LaNi_5$ 및 $LaNi_{4.7}Al_{0.3}$ 의 temperature-induced-cycling 에 따른 intrinsic degradation 현상에 대한 연구 = A study on the intrinsic degradation phenomena of $LaNi_5$ and $LaNi_{4.7}Al_{0.3}$ during temperature-induced-cycling
서명 / 저자 $LaNi_5$ 및 $LaNi_{4.7}Al_{0.3}$ 의 temperature-induced-cycling 에 따른 intrinsic degradation 현상에 대한 연구 = A study on the intrinsic degradation phenomena of $LaNi_5$ and $LaNi_{4.7}Al_{0.3}$ during temperature-induced-cycling / 박종만.
저자명 박종만 ; Park, Jong-Man
발행사항 [서울 : 한국과학기술원, 1986].
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등록번호

4103646

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8617

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초록정보

The effect of thermal cycling of $LaNi_5$ and $LaNi_{4.7}Al_{0.3}$ system on intrinsic degradation were investigated. The change of pressure-composition-isotherm of $LaNi_5$ by thermal cycling was investigated to study the degradation process. The hydrogen storage capacity was decreased about 62% after 3500 cycles, the slope of plateau was increased, the hysteresis was enlarged to the whole composition range with the number of increasing cycles and plateau split in desorption stage was found for the thermal cycles, from 303 to 458K. The effect of annealing conditions on the recovery of $LaNi_5$ was found that the degree of recovery was dependent on annealing temperature at 1 atm hydrogen pressure and for 3 hours. The degradation rate by thermal cycling was increased after the heat treatment. With the results of these experiments, the degradation phenomena was interpreted in view of surface segregation, particle size and structure reordering.

서지기타정보

서지기타정보
청구기호 {MMS 8617
형태사항 [iii], 44 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jong-Man Park
지도교수의 한글표기 : 이재영
지도교수의 영문표기 : Jai-Young Lee
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 41-44
주제 Hydrides.
Metals --Heat treatment.
Segregation.
수소 저장 합금. --과학기술용어시소러스
금속간 화합물. --과학기술용어시소러스
퇴화. --과학기술용어시소러스
열처리 조건. --과학기술용어시소러스
Hydrogen storage capacity.
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