Open AccessGROWTH AND CHARACTERISTICS OF LITHIUM NIOBATE PLATE CRYSTALS
Author(s) -
Ultrasonic Piezoelectric Materials
Publication year - 1979
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.28.783
Subject(s) - lithium niobate , materials science , optics , lithium (medication) , potassium niobate , composite material , ferroelectricity , optoelectronics , dielectric , physics , medicine , endocrinology
Growth of lithium niobate large plate crystals was achieved by using the Wet-ted-Die Technique. Their dimensions were about 200 mm long, 20 mm in width and 3 mm thick. Their properties was found to be the same as those of cylindrical crystals. We measured the density ρm of the melt of lithium niobate and its surface tension a. The results are: ρm= 3.57×103kg/m3, α = 204 dyne/cm at 1270℃, and ρm= 3.42×103kg/m3, α = 192 dyne/cm at 1300℃.