#------------------------------------------------------------------------------ #$Date: 2011-04-08 10:55:00 +0000 $ #$Revision: 001 $ #------------------------------------------------------------------------------ # # This file is available in the Material Properties Open Database (MPOD), # http://www.materialproperties.org/ # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_1000176 _cod_database_code 2217854 _structure_refined 'no' _phase_name 'Rochelle salt' _phase_formula 'KNa(C4H4O6);4H2O' _chemical_formula_sum 'K Na C4 H12 O10' _symmetry_point_group_name_H-M '2 2 2' _cell_length_a 11.7859 _cell_length_b 14.1972 _cell_length_c 6.1875 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 loop_ _publ_author_name 'Mason, W.P.' _publ_section_title ; A dynamic measurement of the elastic, electric and piezoelectric constants of Rochelle salt ; _journal_name_full 'Physical Review' _journal_volume 55 _journal_issue ? _journal_page_first 775 _journal_page_last 789 _journal_year 1939 _phase_density 1775 _prop_conditions_temperature 303 _prop_elastic_stiffness_cij 'cij' _prop_elastic_compliance_sij 'sij' _prop_dielectric_permittivity_relative_epsrij 'epsrij' loop_ _prop_data_label _prop_data_tensorial_index _prop_data_value _prop_measurement_method sij 11 51.8 RT sij 12 -15.3 RT sij 13 -21.1 RT sij 22 34.95 RT sij 23 -10.3 RT sij 33 33.4 RT sij 44 79.8 RT sij 55 328 RT sij 66 100.8 RT cij 11 42.5 RT cij 12 29.6 RT cij 13 35.7 RT cij 22 51.5 RT cij 23 34.25 RT cij 33 62.9 RT cij 44 12.52 RT cij 55 3.04 RT cij 66 9.96 RT epsrij 11 ? CAP epsrij 22 12.5 CAP epsrij 33 10.2 CAP