The thermal expansion below the Néel temperature shows large contributions of magnetic origin to the volume. The spontaneous volume magnetostriction is negative and amounts to −1.1 × 10−3 for GdCu2. At the spin flip transition at 4.2 K in both the compounds an increase in volume is ...
where a tangent line was drawn from the origin point. The MMP was determined at the critical point, where the slope of the tangent line, representing the critical ratio of the pressure increase to reduced volume, transited from initial increase to subsequent decrease....
The aging and thermal expansion behaviors of Si 3 N 4p /2024Al composite fabricated by pressure infiltration method were investigated. The peak-aging time and peak hardness both decrease with the increase of aging temperature for both the 2024Al alloy and Si 3 N 4p /2024Al composite. The cal...
The thermal safety valve, as the name implies, is for cases when thermal expansion of a liquid would create excessive pressure in a closed system. When liquid heats up, it expands but not nearly as much as a gas. Even if the temperature increase is quite dramatic, the change in the volu...
As a result, the annular liquid will also increase. The liquid volume tends to expand and its compressibility is low, which is different from gas. However, the expansion of annular liquid is restricted by trapped annulus because expanded liquid exceeds the capacity of tapped annulus (Zhang et ...
Based on the results of HP-XRD studies, one would suggest that pressure-induced superconductivity is connected to the observed orthorhombic phase appeared at high pressure. If this were the case, one would expect the diamagnetic signal after 30 GPa would substantially increase as the material bec...
βand y of kyanite with increase in temperature is very complicated,and the agreement among all studies is poor.The thermal expansion data at ambient pressure reported here and the compression data at ambient temperature from the literature suggest that,for the kyanite lattice,the most and least ...
Foam cement is an engineered lightweight material relevant to a broad range of engineering applications. This study explores the effects of aluminum chips on cement-bentonite slurry expansion, pressure development, and the evolution of pore topology. The
causes changes in the native protein conformation, which eventually leads toprotein denaturation. The volume increase upon denaturation can be assessed from the effect of pressure. Pressures of 100–200MPa are sufficient to cause (the onset of) dissociation of oligomeric proteins andprotein complexes,...
It might not be possible to increase the tubing diameter if the well produces some amount of liquids because the lower gas velocities might make the well load up with liquids; in this case, the liquid is usually removed with the use of metallic plungers as explained in chapter: Gas Lift ...