서지주요정보
Zirconium에 있어서의 수소의 확산 = Diffusion of hydrogen in zirconium
서명 / 저자 Zirconium에 있어서의 수소의 확산 = Diffusion of hydrogen in zirconium / 박중근.
저자명 박중근 ; Park, Joong-Keun
발행사항 [서울 : 한국과학기술원, 1976].
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소장정보

등록번호

4000180

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 7611

SMS전송

도서상태

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초록정보

Kinetics of the reaction of hydrogen with zirconium was studied in the temperature range of 600 - 900 ℃ using weight gain method in the flow system of Ar atmosphere. The rate controlling step of the reaction is shown to be diffusion of hydrogen through the zirconium lattice. Diffusion of hydrogen in δ zirconium hydride was studied in the temperature range of 660 - 850 ℃. Hydrogen diffused from a surface of constant concentration into a homogeneous phase, developing a second phase on the surface. For the above conditions, the diffusion equation was solved using the method treated by Wagner for this case. By correction with the measurement of the displacement of moving boundary, average concentration at 750 ℃ is given by, $\overline{C}={\frac{4.680D^{1/2}}{h}}ㆍ{t}^{1/2}$ where D is diffusivity, t is time and h is specimen thickness. Similar expressions can be obtained for the other temperatures. By plotting C vs. $t^{1/2}$, we can calculate diffusivity from the slope. The temperature dependence of diffusion coefficient is given by $D^ δ = 6.20 × 10^{-3}\exp [-(15,800 ± 1,800)/RT] ㎠ /sec$ Diffusion of hydrogen in homogeneous β-zirconium was also studied in the temperature range of 753-900 ℃. The temperature dependence of diffusion coefficient is, $D^ β =2.40 × 10^{-4}exp [-(7,000 ± 1,800)/RT] ㎠ /sec$ Oxide film on the surface of zirconium reduced the rate of diffusion of hydrogen in zirconium.

서지기타정보

서지기타정보
청구기호 {MMS 7611
형태사항 iii, 59 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Joong-Keun Park
지도교수의 한글표기 : 이재영
지도교수의 영문표기 : Jai-Young Lee
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 58-59
주제 Zirconium.
Diffusion.
Thermal diffusivity.
Hydrogen.
수소 이동. --과학기술용어시소러스
지르코늄 동위원소. --과학기술용어시소러스
확산. --과학기술용어시소러스
확산 계수. --과학기술용어시소러스
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