Thermal and Magnetic Properties

The temperature independent contribution of the magnetic susceptibility of YSe was deduced from magnetic data of Tm0.01Y0.99Se between 300 and 4.2 K as x(YSe) = 6.52 X 10 cm /mol, Berger et al. [5]. 

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Physical properties of solid materials which are greatly influenced by the presence of defects of lattice order in real single crystals are called structural-sensitive properties, and are distinguished from intrinsic properties, which are determined by the elements constituting the crystal, for example the chemical bonds, the structure, etc. Color, plasticity, glide, and semiconductor properties are structural-sensitive properties, whereas density, hardness, elasticity, and optical, thermal, and magnetic properties are the intrinsic properties. Structural-sensitive... 

The author expresses his gratitude to the U. S. Atomic Energy Commission for partial support of his research endeavors at the University of Michigan on the cryogenic thermal and magnetic properties of the rare-earth chalcogenides and related substances. He also wishes to thank... 

Since the original article, DMAP has had further investigation into its thermal and magnetic properties, as well as a thermal analysis and calorimetric study. An in-depth review of the factors affecting the basicity and nucleophiUcity of common nitrogen-containing catalysts, including DMAP and its derivatives, has also been presented. ... 

Gibot P, Tronc E, Chaneac C, Johvet JP, Fiorani D, Testa AM. (Co, Fe) Pt nanoparticles by aqueous route self-assembling, thermal and magnetic properties. J Magn Magn Mater 2005 290 555-8. 

As a result, two composite systems derived from partially aliphatic polyimides— 5-(2,5-dioxotetra-hydrofurfuryl)-3-methyl-3-cyclohexene-l,2-dicarboxylic acid anhydride reacting with 4,4 -oxydianiline (DOCDA-ODA) and with iron oxide as Fe304—were prepared at different temperatures, 250 and 300°C (Nica et al. 2015). Correlations among the structural, morphological, thermal, and magnetic properties were established for possible application as humidity sensor devices. In addition, the influence of humidity on the electrical properties of poly(DOCDA-ODA)/iron oxide composite were discussed, which led to an analysis of the humidity sensitivity of pure polyimide and of a poly(DOCDA-ODA)/Fe304 with different filler contents of iron oxides at various values of relative humidity (RH). 

The spectroscopic, thermal, and magnetic properties of compounds of the type A3M2X9 (A = Cs, Rb M = Ti, V, Cr X = Cl, Br) are being intensively studied at present. Despite their close structural similarities the compounds exhibit a great variability of physical properties. The ions occur... 

These are some examples, although limited, of how bionanocomposites have been employed in a vast number of applications and how their properties can be tailored by modification with nanoreinforcements and blending with other biopolymers in order to produce bionanocomposite blends with the main goal of improving electrical, mechanical, thermal, and magnetic properties as well as barrier and biodegradability. 

Material property specifications must be written by design and material engineers to control engineering requirements and to control incoming raw material quahty. Material property requirements depend on various ia-use functional needs ia terms of electrical, mechanical, thermal, chemical, optical, and magnetic properties. 

Fig. 8.15 Molecular structure and magnetic properties, XmT versus T, of [Fe2 (PMAT)2] (BF4)4-DMF. Only half of the Fe(II) sites undergo thermal SCO from HS to LS (from [33, 34])...

Enhancement of thermal and electrical properties of carbon nanotube polymer composites by magnetic field processing. J. Appl. Phys. 94 6034-6039. 

The Physical Properties are listed next. Under this loose term a wide range of properties, including mechanical, electrical and magnetic properties of elements are presented. Such properties include color, odor, taste, refractive index, crystal structure, allotropic forms (if any), hardness, density, melting point, boiling point, vapor pressure, critical constants (temperature, pressure and vol-ume/density), electrical resistivity, viscosity, surface tension. Young s modulus, shear modulus, Poisson s ratio, magnetic susceptibility and the thermal neutron cross section data for many elements. Also, solubilities in water, acids, alkalies, and salt solutions (in certain cases) are presented in this section. 

The physical properties of solvents greatly influence the choice of solvent for a particular application. The solvent should be liquid under the temperature and pressure conditions at which it is employed. Its thermodynamic properties, such as the density and vapor pressure, temperature and pressure coefficients, as well as the heat capacity and surface tension, and transport properties, such as viscosity, diffusion coefficient, and thermal conductivity, also need to be considered. Electrical, optical, and magnetic properties, such as the dipole moment, dielectric constant, refractive index, magnetic susceptibility, and electrical conductance are relevant, too. Furthermore, molecular... 

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