3. 1 Basic concepts of al loys 1. Definition An alloy is the combination of metal(s) with other elements through chemical bonding. Termino logy

4. Rule for elongation or reduction of R D All R.D. in the region where K1 and K2 makes an obtuse(acute) angle will increase (reduce) its length after twinning

2. Classification of materials based on structure Regularity in atom arrangement periodic or not (amorphous)

2.5 Indices of crystal planes and directions I What's crystal planes anddirect ions? The atomic planes anddirections passing through the crystal arecalled(crystal) planes and directionsrespectively

2.3 Crystal Structure and Complex Lattice | Crystal structure is the real arrangement of atom in crystals Crystal structure Space lattice Basis or structure unit

1.2 Atomic bonding Bonding forces and energies FF net force attractive force repulsive force

Chapter 1 Atomic Structure and Bonding 1.1 Atomic structure Atomic numbers and atomic masses 1. Atomic Models

一、选择

10-1互感 10-2含有耦合电感电路的计算 10-3空心变压器 10-4理想变压器

地球是属于太阳系中的一颗行星,在了解地球起源及演化前先了解太阳系的起源