Ti-gettered argon atmosphere
WebbAl (99.99 at.%) and Ag (99.9 at.%) in a Ti-gettered argon atmosphere. Each ingot was arc-melted at least four times to achieve chemical ho-mogeneity. The master alloys were further processed by suction-casting into copper mold in a high vacuum (2×10−5 torr) chamber under a purified argon atmosphere. The samples were then cut into WebbThe U.S. Department of Energy's Office of Scientific and Technical Information
Ti-gettered argon atmosphere
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Webb99.99% pure Ti, 99.8% pure Zr, 99.999% pure Cu, and 99.97% pure Ni on a water-cooled silver or copper boat un- der a Ti-gettered argon atmosphere. The nominal composi- tions are used in the current article. The weight loss of samples by alloying was less than 0.1%. Thus, the composi- WebbDownload scientific diagram ͑ a ͒ The critical casting diameter as a function of Ti concentration in a series of alloys Zr 56.2− x Ti x Cu 31.3 Ni 4.0 Al 8.5 ͑ x = 0 – 12 ͒ , showing A ...
WebbIn this work, the chemical de-alloying behavior of Au 30 Cu 38 Ag 7 Pd 5 Si 20 (at.%) amorphous alloy which was rapidly solidified from the melt in the form of ribbons were investigated. First a comparison between samples de-alloyed in nitric acid with and without HF was conducted to achieve homogeneous de-alloying process. Webb7 and Ti 55Cu 35Ni 10 were produced by arc-melting elements with high purity (more than 99.5%). They were repeatedly arc-melted in a Ti-gettered argon atmosphere to ensure complete melting and compositional homogeneity. Ribbons were produced by means of a single-roller melt-spinner with a tangential wheel speed of 42 m/s under argon …
Webb9 mars 2024 · Bulk Ti 47.2 Zr 35.9 Cu 5.5 Be 11.4 [atomic % (at %)] alloys consisting of TiZr-rich crystalline phases and CuZr-rich amorphous phases were produced by melt spinning, ... (>99.95 at %) under a Ti-gettered argon atmosphere. The ingots were remelted at least five times to ensure chemical homogeneity. Then, ... Webbcrucible under a Ti-gettered argon atmosphere. The alloys were re-melted at least four times in the same furnace to ensure chemical homogeneity. Rapidly solidified ribbons were prepared in a single roller melt-spinner in Ar atmosphere by remelting each ingot in Phase Separation in Rapid Solidified Ag-rich Ag-Cu-Zr Alloys
Webb4 juni 1998 · The vacuum vessel of the Advanced Toroidal Facility (ATF) is Ti gettered with a surface coverage of 70%. The major effects of gettering are (1) reduction of the …
Webb9 okt. 2012 · Zr 57.1 Co 28.6 Al 14.3 buttons were prepared by arc melting the mixtures of pure constituent elements under a Ti-gettered argon atmosphere. The purities of metals … temas para tcc pedagogia ejaWebbAnodization was adopted on a biomedical Zr-based Zr 56 Al 16 Co 28 bulk metallic glass (BMG). A highly ordered nanotube layer was fabricated on the surface of Zr 56 Al 16 Co … temas para webinarsWebbIn the second step, the alloy was arc-melted under a Ti-gettered argon atmosphere and cast in a custom-built arc-melt suction-casting apparatus into a water-cooled Cu mold with the plate-shaped dimensions of 2 × 13 × 50 mm. X-ray diffraction (PANalytical X’Pert Pro diffractometer, Malvern Panalytical, Malvern, UK) confirmed the formation of the … temas para w8.1WebbThese days, electric motor qualities and energy-saving problems are significant to our society. The critical component of these problems is related to magnetic materials. In this respect, here, we investigated the (FexCo1−x)72B19.2Si4.8Nb4 (0 ≤ x ≤ 1, at 0.1 intervals) ribbon alloys’ structural, thermal, and magnetic properties. Replacing … temas para w7 64 bitsWebb4 dec. 2024 · The as-cast Ti-Zr-Ta alloys were vacuum arc melted from a mixture of raw metals with a purity over 99.9% in a Ti-gettered argon atmosphere. The ingots had to be remelted at least eight times to achieve a homogeneous distribution of constituent elements. During each cycle, the sample was flipped and kept in a liquid state for ~5 min. temas para whatsapp deltaWebb14 maj 2004 · Titanium metal has been studied as a getter for oxygen, nitrogen, carbon dioxide, air, water vapor, hydrogen, and methane. Titanium above 700°C will getter … temas para win 7Webb4 juni 1998 · The vacuum vessel of the Advanced Toroidal Facility (ATF) is Ti gettered with a surface coverage of 70%. The major effects of gettering are (1) reduction of the oxygen, carbon, and nitrogen content in the plasma and (2) improved density control due to wall pumping of the working gas hydrogen. temas para whatsapp gb baixar