Find the maximum temperature to which the following two magnesia???alumina refractory materials may be heated before a
Question:
Find the maximum temperature to which the following two magnesia???alumina refractory materials may be heated before a liquid phase will appear.
(a) A spinel-bonded alumina material of composition 95 wt% Al2O3-5 wt% MgO.
(b) A magnesia-alumina spinel of composition 65 wt% Al2O3-35 wt% MgO.
Consult Figure.
Transcribed Image Text:
Composition (mol% Al,0,) 20 60 40 80 2800 5000 Liquid Al03 4500 MgAI,0, (ss) + Liquid 2400 Mg0 (ss) Liquid Liquid 4000 Mgo (ss) 2000 3500 MGAIO. (ss) 3000 1600 Mg0 (ss) MgAl,04 (ss) MBAI,0, (ss) 2500 Al,0, 1200 H 2000 20 40 60 80 100 (MgO) Composition (wt % Al,0,) (Al-0,) Temperature ("C) Temperature ("F)
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a From Figure for a spinelbonded magnesia material 95 wt Al 2 O 3 5 wt MgO the maximum ...View the full answer
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Related Book For
Fundamentals of Materials Science and Engineering An Integrated Approach
ISBN: 978-1118061602
4th Edition
Authors: David G. Rethwisch
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