What contaminant causes the red "terra cotta" color in most ceramics?
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Q228: Portland cement is made from what materials?
A)
Q229: How is boron nitride formed?
A) Boron is
Q230: How does water interact with clay and
Q231: What must a glass contain to qualify
Q232: Ceramics are not brittle.
Q234: Glass has numerous,microscopic and macroscopic crystalline regions.
Q235: Why is gravel often used as a
Q236: Which of the following is correct concerning
Q237: At what general temperature are interstitial carbides
Q238: What makes emery different from corundum?
A) Impure
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