2 ceramic structures continue factors influence crystal structure magnitude of electrical charge of ions relative size of ions non metal metal ions rc ra 1 äcations must be next to anions maximize of nearest neighbors that are anions ästable structure anions and cations must contact each other äthe of anions depends on ratio of rc ra.
Structures of metals and ceramics ppt.
Lecture 3 structures of metals and ceramics free download as powerpoint presentation ppt pptx pdf file pdf text file txt or view presentation slides online.
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Structure of metals ceramics ppt.
Ceramic crystal structure broader range on chemical composition than metals with more complicated structures contains at least 2 and often 3 or more atoms usually compounds between metallic ions e g.
Oxygen anions larger than metal cations.
O n cl called anions bonding will usually have some covalent character but is usually mostly ionic.
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Fe ni al called cations and non metallic ions e g.
Structure of metals materials science metals and some ceramics form crystalline structures polymers are mostly non crystalline.
Engine applications silicon nitride si3n4 silicon carbide sic zirconia zro2 alumina al2o3 1 traditional and advanced ceramic materials classification of ceramics bioceramic implants.
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Chapter 3 structures of metals ceramics the properties of a material depends on the arrangement of atoms within the solid.
However some are semi crystalline.
Chapter 3 structures of metals ceramics free download as powerpoint presentation ppt pdf file pdf text file txt or view presentation slides online.
Structures of metals and ceramics.
Applied as thermal barrier coatings to protect metal structures wearing surfaces.