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C50H38F18O16Ce2, monoclinic, C2/c (no. 15), a = 15.589(3)Å, b = 13.118(2) Å, c = 29.118(5) Å, β = 92.285(2)°, V = 5949.8(18) Å3, Z = 4, Rgt(F) = 0.0452, wRref(F2) = 0.1321, T = 273 K.

C13H10BF5O3, triclinic, P1̄ (no. 2), a = 7.737(2) Å, b = 7.8600(19) Å, c = 11.803(3) Å, α = 82.03(2)°, β = 76.91(2)°, γ = 69.69(2)°, V = 654.2(3) Å3, Z = 2, Rgt(F) = 0.0471, wRref(F2) = 0.1203, T = 293 K.

C24H16CuF6O4, triclinic, P1̄ (no. 2), a = 6.5651(7) Å, b = 9.4145(10) Å, c = 9.5014(11) Å, α = 68.668(10)°, β = 77.063(9)°, γ = 86.847(9)°, V = 532.91(11) Å3, Z = 1, Rgt(F) = 0.0596, wRref(F2) = 0.1477, T = 293 K.

C11H6BF5O3, orthorhombic, P21212 (no. 18), a = 13.236(4) Å, b = 18.566(5) Å, c = 4.7869(13) Å, V = 1176.3(6) Å3, Z = 4, Rgt(F) = 0.0442, wRref(F2) = 0.1307, T = 296 K.

C12H6F6O3, monoclinic, P21/c (no. 14), a = 9.433(1) Å, b = 15.567(2) Å, c = 7.682(1) Å, β = 102.83(1)°, V =1099.95(3) Å3, Z = 4, Rgt(F) = 0.0433, wRref(F2) = 0.1264, T = 293 K.

C10H11ClO2, triclinic, P1̅ (No. 2), a = 7.8485(8) Å, b = 8.0420(8) Å, c = 8.8701(9) Å, α = 107.4340(10)°, β = 106.307(10)°, γ = 101.9710(10)°, V = 485.97(8) Å3, Z = 2, Rgt(F) = 0.0513, wRref(F2) = 0.1405, T = 296 K.

C10H11ClO2 triclinic, P1̅ (No. 2), a = 7.8470(3) Å, b = 8.0375(3) Å, c = 9.2261(4) Å, α = 77.052(4)°, β = 86.981(5)°, γ = 61.011(4)°, V = 494.98(3) Å3, Z = 4, Rgt(F) = 0.0441, wRref(F2) = 0.1388, T = 296 K.

C50H38F18O16Ce2, monoclinic, C2/ c (no. 15), a = 15.589(3)Å, b = 13.118(2) Å, c = 29.118(5) Å, β = 92.285(2)°, V = 5949.8(18) Å3, Z = 4, Rgt( F) = 0.0452, wRref( F2) = 0.1321, T = 273 K. [ABSTRACT FROM AUTHOR]

A series of tensile tests for pure copper sheets containing drilled holes of multi-configurations are carried out on a tensile split Hopkinson bar (TSHB) at a range of tensile velocities. The dynamic growth and coalescence of drilled voids were recorded by a high-speed camera. The results of scanning electron microscopical (SEM) investigation of microvoid evolution at edges of ruptured zones between drilled voids in recovered sheets show void coalescence mechanisms, which are similar to evolution of visualized drilled voids. The experimentally recovered and high-speed camera recorded evolution of drilled voids in pure copper sheets are compared with the numerical simulations involving different models for void coalescence in order to overcome the difficulty of assessing the validity of available models for void coalescence. The possible application of Thomason model and Brown-Embury model for void coalescence to thermoviscoplastic material was explored under impact tension, and the rapid local straining of intervoid ligament was revealed. [ABSTRACT FROM AUTHOR]

In order to make effective measure for the stress, strain and strain rate in the specimen, a tensile split Hopkinson bar (TSHB) was optimized in the first loading duration and the thermoviscoplastic models for a pure copper were determined. The deformation of the pure copper bar during the multi-tensile loading including the necking process in the optimized TSHB testing was recorded by a high speed camera and was used in providing an extensional check of the determined thermoviscoplastic models of the pure copper. The thermoviscoplastic models determined in a certain range of strain were employed in numerically simulating the large deformation of the pure copper bar to adjust the thermoviscoplastic model to describing large strain range. The instability strain of thermoviscoplastic materials in simple tension given by Batra et al was compared with the experimental strain at diffuse necking of the pure copper bar and the computed instability strain based on the load-average strain of the pure copper bar. The local necking of the pure copper bar in the optimized TSHB testing was numerically simulated using the micro-mechanical data given by Ragab and was compared with the recorded necking. [ABSTRACT FROM AUTHOR]

C12H6F6O3, monoclinic, P21/ c (no. 14), a = 9.433(1) Å, b = 15.567(2) Å, c = 7.682(1) Å, β = 102.83(1)°, V =1099.95(3) Å3, Z = 4, Rgt( F) = 0.0433, wRref( F2) = 0.1264, T = 293 K. [ABSTRACT FROM AUTHOR]

C12H6F6O3, monoclinic, P21/ c (no. 14), a = 9.433(1) Å, b = 15.567(2) Å, c = 7.682(1) Å, β = 102.83(1)°, V =1099.95(3) Å3, Z = 4, Rgt( F) = 0.0433, wRref( F2) = 0.1264, T = 293 K. [ABSTRACT FROM AUTHOR]