STUDY ON SELF-DIFFUSION IN ALLOY AuCuSi WITH FCC STRUCTURE: DEPENDENCE ON TEMPERATURE, PRESSURE, CONCENTRATION OF SUBSTITUTIONAL ATOMS, CONCENTRATION OF INTERSTITIAL ATOMS AND STRAIN

Chỉ số đề mục

Lĩnh vực nghiên cứu

Khoa học tự nhiên

Dạng tài liệu

BB

Tác giả

Nguyen Quang Hoc, Tran Nu Binh Minh, Truong Nghiem Ngoc Lan, Nguyen Thi Bich Lam, Le Hong Viet, Dam Thi To Giang, Nguyễn Quang Học⁽¹⁾

Nhan đề

STUDY ON SELF-DIFFUSION IN ALLOY AuCuSi WITH FCC STRUCTURE: DEPENDENCE ON TEMPERATURE, PRESSURE, CONCENTRATION OF SUBSTITUTIONAL ATOMS, CONCENTRATION OF INTERSTITIAL ATOMS AND STRAIN

Nhan đề tiếng anh

STUDY ON SELF-DIFFUSION IN ALLOY AuCuSi WITH FCC STRUCTURE: DEPENDENCE ON TEMPERATURE, PRESSURE, CONCENTRATION OF SUBSTITUTIONAL ATOMS, CONCENTRATION OF INTERSTITIAL ATOMS AND STRAIN

Nguồn trích

Tạp chí Khoa học - Trường Đại học Sư phạm Hà Nội: Khoa học Tự nhiên

Năm xuất bản

2024

Số

69

Trang

66

ISSN

Từ khóa

Từ khóa tiếng anh

Tóm tắt

This article presents a self-diffusion theory, including analyticalexpressions for activation energy, pre-exponential factor, and self-diffusioncoefficient, dependent on temperature, pressure, the concentration of substitutionalatoms, the concentration of interstitial atoms, and strain for substitutional andinterstitial ternary alloys with the FCC structure, based on the statistical momentmethod (SMM). The theoretical results are applied to numerical calculations for theAuCuSi alloy. The SMM numerical results for AuCuSi are compared with thosefor AuSi, AuCu, and Au. The variation of self-diffusion quantities withtemperature and strain in AuCuSi follows the same patterns as in AuCu, AuSi, andAu. The variation with the interstitial atom concentration in AuCuSi follows thesame pattern as in AuSi, while the variation with the substitutional atomconcentration follows the same pattern as in AuCu. The SMM numerical results forAu's self-diffusion quantities agree well with experimental data and othercalculation results. Other SMM numerical results for self-diffusion quantities arenovel and predict future experimental outcomes.

Tóm tắt tiếng anh

This article presents a self-diffusion theory, including analyticalexpressions for activation energy, pre-exponential factor, and self-diffusioncoefficient, dependent on temperature, pressure, the concentration of substitutionalatoms, the concentration of interstitial atoms, and strain for substitutional andinterstitial ternary alloys with the FCC structure, based on the statistical momentmethod (SMM). The theoretical results are applied to numerical calculations for theAuCuSi alloy. The SMM numerical results for AuCuSi are compared with thosefor AuSi, AuCu, and Au. The variation of self-diffusion quantities withtemperature and strain in AuCuSi follows the same patterns as in AuCu, AuSi, andAu. The variation with the interstitial atom concentration in AuCuSi follows thesame pattern as in AuSi, while the variation with the substitutional atomconcentration follows the same pattern as in AuCu. The SMM numerical results forAu's self-diffusion quantities agree well with experimental data and othercalculation results. Other SMM numerical results for self-diffusion quantities arenovel and predict future experimental outcomes.

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