A new structural application uses partially stabilized zirconia with equimolar (equal molar amounts) microstructure of monoclinic and cubic zirconia (ZrO₂SS) at an operating temperature of 500° C. Calculate the required CaO content (in weight percent) for this structural ceramic. Refer to the Figure on the following page as needed.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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°℃
2,500
2,000
1,500
1,000
500
0
ZrO₂
Tetragonal ZrO₂SS
4
Monoclinic ZrO₂SS +
Cubic ZrO₂SS
10
Tetragonal ZrO₂SS + Cubic ZrO₂SS
8
CaO (wt %)
12 16
Cubic ZrO₂SS
20
30
CaO (mol %)
20
24
28
Cubic
ZrO₂SS + ZrCaO3
40
50
Transcribed Image Text:°℃ 2,500 2,000 1,500 1,000 500 0 ZrO₂ Tetragonal ZrO₂SS 4 Monoclinic ZrO₂SS + Cubic ZrO₂SS 10 Tetragonal ZrO₂SS + Cubic ZrO₂SS 8 CaO (wt %) 12 16 Cubic ZrO₂SS 20 30 CaO (mol %) 20 24 28 Cubic ZrO₂SS + ZrCaO3 40 50
A new structural application uses partially stabilized zirconia with equimolar
(equal molar amounts) microstructure of monoclinic and cubic zirconia (ZrO₂SS) at an
operating temperature of 500° C.
Calculate the required CaO content (in weight percent) for this structural ceramic.
Refer to the Figure on the following page as needed.
Transcribed Image Text:A new structural application uses partially stabilized zirconia with equimolar (equal molar amounts) microstructure of monoclinic and cubic zirconia (ZrO₂SS) at an operating temperature of 500° C. Calculate the required CaO content (in weight percent) for this structural ceramic. Refer to the Figure on the following page as needed.
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