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Foil optimum thickness

Sample thickness and sample uniformity present serious problems. The ideal sample is a uniform foil or a homogeneous solution. For metals the optimum thickness is in the micron range. Most of the samples studied here were powders, ground to pass 300 mesh, dispersed in a ductile microcrystalline wax. This wax dispersion is then spread to a uniform film across a sample holder window. The window has dimensions 3 X 17 mm. Adhesive cellophane tape is frequently spread over the window to assist in the mounting and supporting of the sample. [Pg.155]

For example, in the case of a natural ot-iron foil 7 mg/cm natural iron content (i.e., a linear thickness of 9 pm) is the optimum however, 0.2 mg/cm samples can also be measured with some difficulty. From the point of view of the Mossbauer resonant transition, only the Fe... [Pg.1437]

For the optimum composition samples the Young s modulus was measured by the three-point bending method. For this purpose the NbsSn coatings with the thickness d=10-15 pm deposited onto a niobium foil 50 pm thick were used. The selection of such a thickness was determined by the fact that at lower d the method sensitivity deteriorates, whereas at d>15 pm niobium stannide may crack on testing. Within the measurement error the Ewbasn value was (130 10)xl0 H/m2. This value is close to that of the Young s modulus for NbsSn obtained by the method of chemical deposition [9]. [Pg.242]


See other pages where Foil optimum thickness is mentioned: [Pg.271]    [Pg.198]    [Pg.478]    [Pg.478]    [Pg.29]    [Pg.81]    [Pg.56]    [Pg.58]    [Pg.355]    [Pg.395]    [Pg.478]    [Pg.60]    [Pg.478]    [Pg.78]    [Pg.60]    [Pg.166]    [Pg.166]    [Pg.92]    [Pg.216]    [Pg.521]    [Pg.617]    [Pg.62]    [Pg.284]    [Pg.421]    [Pg.191]    [Pg.106]    [Pg.57]    [Pg.596]   
See also in sourсe #XX -- [ Pg.163 , Pg.164 ]




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