{'fraction_non_alphanumeric': 0.01948051948051948, 'fraction_numerical': 0.011363636363636364, 'mean_word_length': 5.706521739130435, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Dielectric Properties of Bismuth Layer Type Ceramics with Alkali and Lanthanum Substitutions

Dielectric Properties of bismuth layer type ceramics with alkali and lanthanum substitutions (Pb1-xMx/2Lax/2) Bi2Nb2O9 are presented. Dielectric constant and loss tangent of the substituted materials at room temperature are all higher than the parent PBN. At temperatures higher than T0, dielectric constants deviate from Curie-Weiss law showing relaxor behavior. The new materials exhibit very high resistivity and break-down strength at high temperatures making these materials very attractive for capacitor dielectrics.