Detail of "12045-19-1"

Reference

Ab initio investigations of TlI-type compounds under high pressure

Ab initio investigations of TlI-type compounds under high pressure. Becker, Daniel; Beck, Horst P. (Institute of Inorganic and Analytical Chemistry and Radiochemistry, Saarland University, Saarbruecken D-66041, Germany). Zeitschrift fuer Kristallographie, 219(6), 348-358 (English) 2004 Oldenbourg Wissenschaftsverlag GmbH. CODEN: ZEKRDZ. ISSN: 0044-2968. DOCUMENT TYPE: Journal CA Section: 75 (Crystallography and Liquid Crystals) Section cross-reference(s): 65 We present a theor. study (based on DFT-calcns.) in a wide pressure range of the structural and electronic properties and the stability of compds. crystg. in a TlI- or CrB-type structure. Both structure types have the characteristic structural feature of zigzag chains with unusual short homonuclear distances. The main focus of this study is to elucidate the nature of bonding within these zigzag chains at ambient and elevated pressure.In this article, certain chemicals are used. Some of their cas registry numbers are 12045-19-1 and 12265-94-0 For this purpose we discuss the evolution of the distances within the zigzag chains with pressure, the transition pressure of the phase transition to a CsCl-type arrangement (high-pressure phase) and compressibilities of the low- and high-pressure phases. For a better understanding of the structure and bonding, the band structures of these compds. are evaluated. The calcns. are complemented by an orbital anal. using the crystal orbital Hamilton population (COHP) and an anal. of the electronic d. topol. with the electron localization function (ELF). Our study indicates that there is a bonding electron pair in compds. crystg. in the CrB-type structure and that the nature of the electron pair does not change significantly at elevated pressure up to the phase transition. However, the character of the addnl. electron pair in the In-monohalides (TlI-type structure) changes with increasing pressure from nonbonding to bonding. The phase transition to a CsCl-type structure implies a fundamental change to nonbonding stereochem. inert electron pairs for all compds. .

a,b-Titanium alloy composites having dispersed boride phase

a,b-Titanium alloy composites having dispersed boride phase. Kobayashi, Masaru; Funemi, Kunio; Okada, Atsumasa; Suzuki, Seiichi; Sato, Kazuo; Hasegawa, Sunao (Maruto Hasegawa Kosakusho Kk; Kobayashi Masaru, Japan). Jpn. Kokai Tokkyo Koho JP 08311586 A2 26 Nov 1996 Heisei, 7 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C22C014-00.There are some reagents with their cas registry numbers 12045-19-1 and 112490-63-8 are used in this study. ICS: C22C001-05. APPLICATION: JP 1995-116706 16 May 1995. DOCUMENT TYPE: Patent CA Section: 56 (Nonferrous Metals and Alloys) Composites are manufd. by mixing a,b-Ti alloy with 5-20 vol.% boride powder, compacting, heating and sintering to ppt. needle-like or granular TiB compd. in a matrix. The preferred Ti alloys are Ti-6Al-4V, Ti-6Al-6V-2Sn, and Ti-6Al-2Sn-4Zr-6Mo alloy powders (particle size about 50 mm), and the preferred boride is FeB, MoB, WB, NbB, and CrB (particle size 1-5 mm). Reaction sintering is conducted at 900-1200° in vacuum. The composite having high strength, hardness, wear resistance, and modulus of elasticity has a wide range of applications, such as cutting tools, golf clubs, etc. .