Classification of domain pairs and tensor distinction

摘要: Abstract The symmetries of domain states a pair (S1,S2) can be determined from the symmetry group F 1 first state and twinning operation g12 which transforms this into second. A classification is introduced classifies all possible pairs according to g12. One obtains 139 classes 43 correspond non-ferroelastic 96 ferroelastic pairs. tensor distinction by belonging same class have distinction. are tabulated along with their corresponding K 12 = 1, >, generated each given for variety material property tensors.