Given that the salt, Potassium Bromide (KBr), forms the pictured rock salt structure and in that structure the K* and Br ions touch along the <100> family of directions, calculate the atomic packing factor (APF) and theoretical density (p) in [g/cm'). Then answer the concept question. lonic radius: K* = 0.138 nm; Br = 0.196 nm Atomic Weight: K = 39.1 g/mol; Br = 79.9 g/mol APF = 9 /cm² Identify the type of ceramic defect that occurs where a pair of K* and Br ions goes missing from the lattice. Circle the correct option: a) Frenkel defect b) Schottky defect Note: Spaces between atoms

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Given that the salt, Potassium Bromide (KBr), forms the pictured rock salt structure and in that
structure the K* and Br ions touch along the <100> family of directions, calculate the atomic packing factor
(APF) and theoretical density (p) in [g/cm'). Then answer the concept question.
lonic radius: K* = 0.138 nm; Br = 0.196 nm
Atomic Weight: K = 39.1 g/mol; Br = 79.9 g/mol
APF =
9 /cm²
Identify the type of ceramic defect that occurs where a pair of
K* and Br ions goes missing from the lattice.
Circle the correct option:
a) Frenkel defect
b) Schottky defect
Note: Spaces between atoms
Transcribed Image Text:Given that the salt, Potassium Bromide (KBr), forms the pictured rock salt structure and in that structure the K* and Br ions touch along the <100> family of directions, calculate the atomic packing factor (APF) and theoretical density (p) in [g/cm'). Then answer the concept question. lonic radius: K* = 0.138 nm; Br = 0.196 nm Atomic Weight: K = 39.1 g/mol; Br = 79.9 g/mol APF = 9 /cm² Identify the type of ceramic defect that occurs where a pair of K* and Br ions goes missing from the lattice. Circle the correct option: a) Frenkel defect b) Schottky defect Note: Spaces between atoms
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