Crystallization temperature dependence

Further evidences supporting SD come from the crystallization temperature dependence of the optical micrographs of PET. Figure 27 shows the... 

Blaurock and Carothers (1990) and Blaurock and Wan (1990) described a simple way, valid for butteroil, of analyzing isothermal DSC data to characterize the kinetics of early crystallization in a supercooled oil. This approach yielded a single crystallization-temperature dependent combined nucleation/crystal growth constant (which they called NG). The temperature dependence of NG could be modeled with the Arrhenius equation. 

The crystallization temperature depends on the composition of the mixture to be treated. The cooling diagram shows that a eutectic exists between p-xylene and each of the other components of the mixture. In the case of the m, p-xyiene binary system, the eutectic contains 13 per cent p-xylene and melts at —52 C (Fig. 4.10). It separates two iiquidus curves ME in equilibrium with solid m-xylene, PE in equilibrium with solid p-xylene. Provided that the initial mixture contains more than 13 per cent p-xyleoe. crystals of pure p-xylene are obtained by cooling to — 52 and a mother liquor, whose composition is that of the eutectic. However, it qan be noticed (bat the existence of the eutectic leads to limited recovery, and that this recovery requires beat exchanges at low temperature. 

Fig. 3 Lowest electronic states (a) for DyV04 crystal, temperature dependence of the energy gap between ground and excited doublets (b) (for comparison Raman scattering results are shown for the DyAs04 crystal with similar electronic and crystal structures), and the ultrasonic measurements (c) of the elastic constant Ci = l/2(Cn-Ci2) for DyV04 crystal...

Zeeman-perturbed NQR on a single crystal. Temperature dependence also studied. 

In other words, when a homogeneous polyethylene solution was cooled at a constant rate, the point of beginning crystallization was reached. This point was indicated by the first visual turbidity. At all concentrations, homopolymer A had a point of beginning crystallization about 10°C higher than that of copolymer B. This finding seemed reasonable since the crystallization temperature depends on the comonomer content and on the degree of short-chain branching of the polyethylene. From the curve we concluded that the temperature at which styrene diffused into LDPE A was about 10°C above that for diffusion into LDPE B at a comparable rate of diffusion. 

Slightly different hfs data measured in Xe matrix. ) Principal value along a-axis of crystal. Temperature dependence studied. 

Fig. 20. VjOj, single crystal. Temperature dependence of VXfj (average values) for the perpendicular direction. Solid curve is a least-squares (it by a cubic equation, the dashed lines correspond to a Curie-Weiss law [68A8].

Fig. 106. CsiMnClj 2H,0, single crystal. Temperature dependence of 1/xn and 1/X [68S37]. Fig. 107 sec next page...

Fig. 119. Mn(HCOO)2 2H2O, single crystal Temperature dependence of l/z along three crystallographic axes [65Y5].

Fig. 125. Na MniSi Ov, single crystal. Temperature depen- Fig. 126. NajMnjSijO, single crystal. Temperature dependence of Xm (open circle), full circle in the plane of sym- dence of spontaneous magnetization [68K1]. metry triangle along the b axis [68K1].

Fig. 177. Fc3(P04),-413,0, single crystal. Temperature dependence of x, in the directions of the three prindpal magnetic axes. Crystal 1 1, full triangle Xi, Z full triangle Z full circle /j, crystal II I, open triangle 2, open triangle Xz, 3, open circle Xi [68M12].

Fig. 258. CsjCoCls, CsiCoC, and K2Co(CNS)4 4H2O, single crystals. Temperature dependence of [64F].

Fig. 263. CsjCoCIs, single crystal. Temperature dependence Xm/C measured along the c axis [67M22].

Fig. 274. CotCHjCOO), -4FI,0 single crystal. Temperature dependence of the square of the principal magnetic moments parallel and perpendicular to the tetragonal axis [65M8].

Fig. 284. [Co(H20)6]F2 SHF, single crystal. Temperature dependence of magnetic anisotropy where (Xi—X2) s measured perpendicular to c axis c and h represent cooling and heating respectively [68D11].

Fig. 286. [CoCHjOypj -SHF, single crystal. Temperature dependence of principal magnetic moment squared p -along c axis, Pj, and perpendicular to c axis, Pi > pj [68D11].

Fig. 344. NaNiO, single crystal. Temperature dependence Fig. 345. NaNiO, single crystal. Magnetization <7 of a...

S. Riedling, J. Franz, T. Ishida, A. Erb, G. Muller-Vogt, H. Wiihl Phase separation in YBa2Cu307 5 single crystals near 5 = 0, Physica C 200, 271-276 (1992) D.-H. Wu, S. Sridhar Pinning forces and lower critical fields in YBa2Cu30y crystals Temperature dependence and anisotropy, Phys. Rev. Lett. 65, 2074-2077 (1990)... 

Crystallization temperature dependent on sol solution of Hf02thin films on Si(001) wafers... 

In sol-gel-derived Hf02thin films on Si(OOl) wafers, the crystallization temperature depends on the composition of the sol solution. Upon preparing the sol solution, (a) a formic acid (HCCOH) or (b) a nitric acid (HNQj) is used as the catalyst for Hf(OH)4 to form a soluble sol in H2O, resulting in a hafnia sol solution. 

Fig. 1. VjOj single crystal. Temperature dependence of Fig. 2. VjOj single crystal. Temperature dependence of Ay, Ay,. The circles, both filled and unfilled, are data for [71G30]. lowering of temperature, the triangles are data for increasing of temperature. Filled and unfilled circles due to different sets of measurements [71G30].

Fig. 28. CsMnCl3 2H20 single crystal. Temperature dependence of magnetic anisotropy Zn Xf Zt Solid curve calculated on the basis of the Heisenberg model [72N1].

Fig. 40. (NH4)2MnF5 single crystal. Temperature dependence of Xm- The open circles are in [010] and full points are in [100] [71K14].

Fig. 41. MnjB4 single crystal. Temperature dependence of Zg(Za. Zt- Xc) [71K6].

Fig. 67. RbFeF4 single crystal. Temperature dependence of Xn parallel and perpendicular to crystallographic b axis [71E2],...

Fig. 109. CsCoClj-ZHjO single crystal. Temperature dependence of y, (left scale and open symbols) and 1/y, (right hand scale and solid symbols. Circles H u squares H l6 triangles H If [72H18],...

Fig. 115. [CoCljfHjOlA] 2 HjO single crystal. Temperature dependence of p ,, p. Curves fitted to d crystal...

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