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27  Articles
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The dependence of the acoustic emission (AE) rolled hafnium HPE-1 under tensile strain on the direction investigated of cutting the samples and heat treatment. For unannealed samples with different directions clippings AE hafnium registered only at stages... see more

The calculation efficiency method of hafnium refining by crucibleless float-zone recrystallization method in high vacuum taking into account the impurity evaporation is conducted. For the i-th impurity an effective distribution coefficient k??i, an evapor... see more

The work studied the possibility of obtaining of the high-purity samples of zirconium and hafnium by the method of zone recrystallization of round rods with electron-beam heating in a vacuum of 1·10-4 Pa. Some meltings were carried out in a constant elect... see more

Results of X-ray investigations of dependence of the crystallographic texture of hafnium and zirconium on degrees of cold rolling are presented. To obtain numerical principles, the method of inverse pole figures (IPF) with calculation of the texture param... see more

Lithium niobate (LiNbO3) is an important technological material with good electro-optic, acousto-optic, elasto-optic, piezoelectric and nonlinear properties. Doping LiNbO3 with hafnium (Hf) has been shown to improve the resistance of the material to optic... see more

The object of research is the formation of the functional zone of a multicomponent ceramic composite based on refractory anoxic compounds. One of the most problematic points is the determination of influence of the type of binder on the formation of the f... see more

The object of research is the formation of the functional zone of a multicomponent ceramic composite based on refractory anoxic compounds. One of the most problematic points is the determination of influence of the type of binder on the formation of the f... see more

Here is given the results of investigation of mechanical properties of high-purity hafnium, iodide hafnium and hafnium GFE-1 at temperature range 20-900°C. Taken results are testifying about considerable influence of methods of receiving hafnium, its... see more

In the paper the studies of physico-chemical grounds of involving the fourth group elements (titanium, zirconium, hafnium) for syntheses of construction silicate materials are presented. The physico-chemical approach proposed allows involving the great gr... see more

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