Výsledky vyhledávání

CALCUL DE LA VITESSE DE REFROIDISSEMENT ET MICROSTRUCTURE DE L’ALLIAGE Al-5%Cu SOLIDIFIE RAPIDEMENT

Autor: C SERRAR, N BOUMAIZA, A BOUBERTAKH, N BOUKHEIT

Publikováno v: Sciences & Technologie, Vol 0, Iss 32, Pp 21-27 (2010)

La technique de trempe sur roue tournante a permis d'élaborer des rubans d'épaisseur moyenne de 30 μm pour une vitesse de rotation périphérique de la roue de 42m/s. La résolution de l'équation de Fourier pour un transfert de la chaleur dans le

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doajarticles::2c4283c09df711db7a13f1a7e68a3299
http://revue.umc.edu.dz/index.php/a/article/view/16

Zobrazit plný text záznamu

Comparative G2(MP2) Molecular Orbital Study of B3H7XH3 and H3BXH3 Donor−Acceptor Complexes (X = N, P, and As)

Autor: C. Serrar, A. Ouassas, A. Es-sofi, Abderrahim Boutalib, Ignacio Nebot-Gil, Abdellah Jarid, Francisco Tomás

Publikováno v: The Journal of Physical Chemistry A. 106:9065-9070

B3H7XH3 and H3BXH3 (X = N, P, and As) have been studied as donor−acceptor complex type at the G2(MP2) level of theory. Both single- and double-bridged structures of B3H7 Lewis acid are taken into account. Although the double-bridged structure is en

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a47f6d176bfe13dcbfca3cfe0850713
https://doi.org/10.1021/jp020981x

Zobrazit plný text záznamu

Theoretical study of Me2S·B11H13 complex and intermediate structures of B11H15 derivative

Autor: A Es-sofi, A. Boutalib, C. Serrar, A. Ouassas

Publikováno v: Journal of Molecular Structure: THEOCHEM. 423:161-171

In this paper we have theoretically studied different isomers of the Me 2 S·B 11 H 13 complex using the AM1 semi-empirical SCF-MO calculations. The calculated geometries were in good agreement with those determined by using X-ray diffraction. The co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::649af6dec5e6b3b676ce0e15257170d4
https://doi.org/10.1016/s0166-1280(96)04910-x

Zobrazit plný text záznamu

Synthesis, Reactivity and Theoretical Study of B3H8−and Related Derivatives

Autor: A. Ouassas, B. Frange, A. Boutalib, C. Serrar

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 26:669-683

Octahydrotriborate salts, B3H8 −, have been prepared by the reaction of NaBH4 with Lewis acids such as BX3·BDMA (BDMA = benzyldimethylamine, × = Cl,Br) or C2H5I in diglyme. The presence of BH3·BDMA as a by-product in the former reaction provides

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac5d4b7bc09a068412d9bff2f1efbb7a
https://doi.org/10.1080/00945719608004769

Zobrazit plný text záznamu

Wear-Fatigue Behavior of Ni88P11.78Co0.12Fe0.10 and Ni80.55Cr15.25B4.20 Metallic Glasses During Rubbing Against an Eccentric Rotating Ceramic Roller

Autor: C. Serrar, P. Guiraldenq

Publikováno v: Journal of Tribology. 134

The wear-fatigue rupture of Ni88P11.78Co0.12Fe0.10 (NiP) and Ni80.55Cr15.25B4.20 (NiCrB) glasses prepared by planar–flow casting have been studied using a test under simultaneous constant and cyclic loading generated by an eccentric rotation cerami

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6025dedd566119abf025eeb1cad0c76b
https://doi.org/10.1115/1.4007218

Zobrazit plný text záznamu

ChemInform Abstract: Synthesis, Structural Characterization, and Theoretical Calculations of a New Copper(I)-Octahydrotriborate Complex

Autor: A. Es-sofi, C. Serrar, Abdellah Jarid, A. Ouassas, A. Boutalib

Publikováno v: ChemInform. 31

Reactions of CuCl with [R4N][B3H8] (R = Et, n-Pr, n-Bu) salts give the new [R4N][ClCuB3H8] complexes of copper(I). These compounds have fluxional behavior in solution. MP2 and DFT calculations show that the most stable conformation of the anion has t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f1260795293c2d026f7e10bca7b6bd6
https://doi.org/10.1002/chin.200031025

Zobrazit plný text záznamu