Results 21 to 30 of about 1,727,422 (269)

Triassic in the eastern Sichuan basin ray slope and badong group strata division and correlation [PDF]

E3S Web of Conferences, 2022
Triassic strata are widely developed in the eastern part of Sichuan Basin. The Mingyuexia anticline and Huangnitang anticline located in the eastern Sichuan structural belt develop Triassic Jialingjiang Formation to Xujiahe Formation. The middle Triassic
Liu Zhen, Zhang Ruigang, Zhou Dan, Chen Fei, Li Wei, Chen Yang, Zhou Zhengda, Nie Lei   +7 more
doaj   +1 more source

Effect of Ce on phase formation and magnetic properties of (Nd–Pr)2.28Fe13.58B1.14 melt-spun ribbons

Materials Research Express, 2020
The phase formation of the (Nd _0.70 Pr _0.30−x Ce _x ) _2.28 Fe _13.58 B _1.14 (x = 0.10, 0.15, and 0.20; hereafter defined as Pr _20 Ce _10 , Pr _15 Ce _15 and Pr _10 Ce _20 , respectively) and (Nd _0.60 Pr _0.40−y Ce _y ) _2.28 Fe _13.58 B _1.14 (y ...
M H Rong, J Ma, Q R Yao, J Wang, G H Rao, H Y Zhou, Z P Jin   +6 more
doaj   +1 more source

Effect of increasing the Al2O3 content on the phase formation and mechanical properties of lithium disilicate glass-ceramics

Materials Research Express, 2021
Lithium disilicate glass ceramics with improved properties were prepared via a thermal treatment method by varying its composition. This study aims to investigate the influence of the concentration of Al _2 O _3 additive oxides on the phase formation and
Wilaiwan Leenakul, Arnon Kraipok
doaj   +1 more source

ANALYSIS OF Nb – Ni AND V – Ni BASED MEMBRANE CHARACTERISTICS

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
To obtain ultrapure hydrogen by membrane technology, instead of expensive membranes made of Pd alloys, cheaper ones based on metals (Nb-Ni) and (V-Ni) are considered.
R.M. Belyakova, E.D. Kurbanova, V.A. Polukhin   +2 more
doaj   +1 more source

Phase and morphology evolution of (Na1-xKx)NbO3 powders related to calcinations and K2CO3 content [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2007
Sodium-potassium niobate ((Na1-xKx)NbO3) powders with x = 0.2, 0.4, 0.6 and 0.8 were prepared following the conventional mixed oxide method and characterized by TG-DTA, XRD and SEM techniques.The effects of calcination temperature, dwell time and K2CO3 ...
Steven J. Milne, Winai Saengchote, Supasarote Muensit, Pornsuda Bomlai   +3 more
doaj  

Diffusional interaction and phase formation in nickel–aluminum films [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
In the present paper bimetal nickel –aluminum films are obtained in vacuum by method of the contact melting at temperature 650°C. The eutectic formations which appear on the surfaces of the films due to diffusion are detected by method of the raster-type
S.N. Akhkubekova, V.K. Kumykov, M.Z. Laipanov, A.R. Manukyants, V.A. Sozaev, B.M. Khubolov   +5 more
doaj   +1 more source

Star formation in a multi-phase ISM [PDF]

Astrophysics and Space Science, 2003
We present a 3d code for the dynamical evolution of a multi-phase interstellar medium (ISM) coupled to stars via star formation (SF) and feedback processes. The multi-phase ISM consists of clouds (sticky particles) and diffuse gas (SPH): exchange of matter, energy and momentum is achieved by drag (due to ram pressure) and condensation or evaporation ...
Harfst, Stefan, Theis, Christian, Hensler, Gerhard   +2 more
openaire   +3 more sources

Towards a Sustainable Laser Powder Bed Fusion Process via the Characterisation of Additively Manufactured Nitinol Parts

Designs
Is additive manufacturing (AM) a sustainable process? Can the process be optimised to produce sustainable AM parts and production techniques? Additive manufacturing offers the production of parts made of different types of materials in addition to the ...
Muhannad Ahmed Obeidi, Paul Healy, Hasan Alobaidi, Declan Bourke, Dermot Brabazon   +4 more
doaj   +1 more source

Influence of the parameters of thermal decomposition of ammonium tetravanadate on the processes of phase formation of highly dispersed vanadium oxides. [PDF]

Trudy Odesskogo Politehničeskogo Universiteta, 2018
The peculiarities of the thermal decomposition of the highly dispersed vanadium (IV) ammonium tetrabutanate salt, which is a precursor for the production of nanocrystalline vanadium oxides of different degrees of oxidation (V2O5, VO2), are studied.
Luskan К. , Gyrenko А. , Musov О. , Savchenko Мaria , Klimenko О.   +4 more
doaj   +1 more source

Gas Phase Formation of Methylgermylene (HGeCH3)

ChemPhysChem, 2020
AbstractThe methylgermylene species (HGeCH3; X1A′) has been synthesized via the bimolecular gas phase reaction of ground state methylidyne radicals (CH) with germane (GeH4) under single collision conditions in crossed molecular beams experiments. Augmented by electronic structure calculations, this elementary reaction was found to proceed through ...
Zhenghai Yang, Chao He, Srinivas Doddipatla, Vladislav S. Krasnoukhov, Valeriy N. Azyazov, Alexander M. Mebel, Ralf I. Kaiser   +6 more
openaire   +3 more sources