Elastic modulus vs temperature

Figure 1.34 Tg estimate from an elastic modulus vs. temperature study.

Figure 4.14 Elastic modulus vs. temperature for Mitsubishi Engineering-Plastics Corporation lupilon /Novarex PC [2],...

Figure 7.62 Elastic modulus vs. temperature for Topas Advanced Polymers Topas 5013, 6013, 6015, and 6017 COC resins [6].

Figure 8.16 Elastic modulus vs. temperature for BASF Elastollan R glass fiber filled TPU resins [4].

Figure 8.58 Elastic modulus vs. temperature for DuPont Hytrel thermoplastic polyester elastomer resins [7].

Fig. 4.22 Elastic moduli vs. temperature obtained by AFM nanoindentation measurements on various alkyd-based coatings (a) effect of oil number, (b) time evolution of modulus after application of the coating. (Reprinted with permission from [47].)...

The elastic moduli vs. temperature curves of the hypoeutectic Ti-Si7.5-All alloy and of the directionally solidified eutectic a-Ti-Ti5Si3 composite with discontinuous Ti5Si3 fibers -aspect ratio of lf/df 50- are depicted in fig. 14. In comparison the temperature-dependent Young s modulus of the polycrystalline Ti5Si3 compound is also shown in the diagram. A detailed description and discussion of the elastic moduli of the pure silicides is given in section 4.3. 

Figure. 1. The elasticity modulus vs. fractal dimension of chain part between interfacial areas D at testing temperatures 293 (1) and 373 K (2) for nanocomposites based on the polypropylene...

As an example, Fig. 86 shows the tensile modulus of elasticity E vs temperature T plots, as measured for the 83PU-17PHEMA network and ND-containing composites based thereon (their CR spectra were described in Sects. 3.2 and 3.8). One can see a considerable and various (by a sign and magnitude) influence of small ND additives on the elastic properties of polymer matrix additionally, these changes are different in the different temperature regions. 

Because the indentation varies with time, the modulus must be specified for a certain indentation time, eg, a 10-s modulus. The Hertz equation holds only for purely elastic materials. However, it has been appHed to viscoelastic materials, including polymers and coatings, with excellent results (249—256). Indentation hardness vs temperature curves are shown in Figure 40 (249,251). 

Fig. 2. Automated torsion pendulum schematic. An analog electrical signal results from using a light beam passing through a pair of polarizers, one of which oscillates with the pendulum. The penduluin is aligned for linear response and initiated by a computer that also processes the damped waves to provide the elastic modulus and mechanical damping data, which are plotted vs. temperature or time...

FIGURE 1.10. Shear modulus G, bulk modulus K, Young s modulus E, and Poisson s ratio v of tungsten vs. temperature, as calculated fium single-crystal elastic constants (Gj, E, and v ) [1.31], and from measurements on polyciystalline tungsten (G, K, E, and Vj). [1.30] Taken from Metals Handbook [1.40]. o... 

Figure 4. Calculated properties vs. temperature and anisotropy coefficient (p) elastic modulus, MPa, along Y/Z-axes (a) and its relative difference, %, to X-axis (b) thermal conductivity, W/mK, along Y/Z-axes (c) and its relative difference, %, to X-axis (d).

Bending beam theory calculation of elastic modulus, 361-362 calculation of glass temperature, 362 calculation of thermal expansion coefficient, 362 layer stress determination, 361 Benzophenone-3,3, 4,4 -tetracarboxydi-anhydride-oxydianiline-m-phenylenediamine (BTDA-ODA-MPDA) polyimide, properties, 115-116 Bilayer beam analysis schematic representation of apparatus, 346,348/ thermal stress, 346 Binary mixtures of polyamic acids curing, 116-124 exchange reactions, 115 Bis(benzocyclobutenes) heat evolved during polymerization vs. 

Figure 2. Mechanical loss tangent (tan 5) and elastic storage modulus at 102 c.p.s. and spin-lattice relaxation time (20) vs. temperature for poly (4-methyl-l-pentene) crystallized from dilute solution...

Young s Modulus. Young s moduli, E, for several resins are plotted vs. temperature in Fig. 7. Young s moduli were determined from stress-strain diagrams. At 4K, their values are within 10%. Therefore, the low-temperature values of E do not depend markedly on the detailed chemical structure. It must be emphasized that epoxy resins are energy-elastic and have a nearly linear stress-strain behavior to fracture at low temperatures. No rate dependence was found over several decades. This is not true for many high polymers, such as polyethylene (PE), which are not cross-linked. PE behaves viscoelastically, even at 4 K [%... 

Figure 2.20 Modulus of bending elasticity vs. temperature for Toray Plastics Toyolac ABS resins.

Fig. 86 Modulus of elasticity vs temperature plots obtained using the laser interferometer for the 83PU-17PHEMA hybrid network (Eq) and its nanodiamond...

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