QUESTION 30 You have produced a thin sheet of a new high entropy alloy that is composed five primary elements (Ti, V. Nb, Mo, and Ta) in equal proportions. This alloy is single phase and has a BCC crystal structure. This sheet has been annealed in pure oxygen at a temperature of 900°C. Assuming that steady state diffusion was achieved (Fick's first law), salculate the dilision fux of osyson throush the ahost, The concentrations of oxygen at positions of I mm and 15 mm beneath the oxidized surface are 1.0 kg'im' and 0.8 kg/m', respectively At this temperature, the diffusion coeflicient for oxygen through the sheet is 5.06 x 10 m/s. The total thickness of the sheet is 25 man. Soure useful equations and conversion factors are provided below. J--I *D* ((Chigh- Clow) / (Xhigh - Xlow) 10 am= 10 mum = 10² cm O 723x 1010 kg/m2 s) O 6.44 x 1011 kel? s) O 3.54 x 1012 kg/m? s) O 6.07 x 1012 ke/im? s) O 1.38 x 10 16 kg/m2 s) O 1.60 x 1019 kg/im? s) 4.22 x 10 10 kgm2 s) Seve A Arre

QUESTION 30 You have produced a thin sheet of a new high entropy alloy that is composed five primary elements (Ti, V. Nb, Mo, and Ta) in equal proportions. This alloy is single phase and has a BCC crystal structure. This sheet has been annealed in pure oxygen at a temperature of 900°C. Assuming that steady state diffusion was achieved (Fick's first law), salculate the dilision fux of osyson throush the ahost, The concentrations of oxygen at positions of I mm and 15 mm beneath the oxidized surface are 1.0 kg'im' and 0.8 kg/m', respectively At this temperature, the diffusion coeflicient for oxygen through the sheet is 5.06 x 10 m/s. The total thickness of the sheet is 25 man. Soure useful equations and conversion factors are provided below. J--I D ((Chigh- Clow) / (Xhigh - Xlow) 10 am= 10 mum = 10² cm O 723x 1010 kg/m2 s) O 6.44 x 1011 kel? s) O 3.54 x 1012 kg/m? s) O 6.07 x 1012 ke/im? s) O 1.38 x 10 16 kg/m2 s) O 1.60 x 1019 kg/im? s) 4.22 x 10 10 kgm2 s) Seve A Arre

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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