Results 51 to 60 of about 1,972,499 (155)

Reaction of aromatic azides with strong acids: formation of fused nitrogen heterocycles and arylamines

Journal of the Brazilian Chemical Society, 1999
We describe in this paper the action of trifluoroacetic acid, trifluoromethanesulfonic acid and aluminum chloride upon ortho-substituted aryl azides to form indoles, azepines and arylamines in good yields.
Carvalho Marcia de, Sorrilha Ana E.P.M., Rodrigues J. Augusto R.   +2 more
doaj  

STUDIES ON THE EFFECT OF TECHNOLOGICAL FACTORS ON THE LUMINESCENCE CHARACTERISTICS OF SOLID SOLUTIONS Y3AL5O12, ACTIVATED BY RARE-EARTH IONS

Вестник Северо-Кавказского федерального университета, 2022
The article presents the effect of the calcination process conditions on the luminescence properties of solid solutions (Y0,9Yb0,1)3Al5O12, set the optimal temperature-time regime of high-temperature synthesis of these compounds which the production of a
Egor Igorevich Pozdnyakov
doaj  

First in CIS systems of metal bottom purging by inert gases in arc steel-melting furnace

Литьë и металлургия, 2001
Systems of “direct” and “hidden” types of bottom^ purging of metal by inert gases in a powerful arc steel-melting furnace are investigated and implemented.
M. P. Guljaev, V. V. Filippov, I. V. Ivanov, V. V. Enders, Ev. Shumacher, Ed. Shumacher, R. Franzki, X. Brener   +7 more
doaj  

Simulation of calculation of combat vehicle fuel efficiency by reducing vehicle weight using aluminum material

International Journal of Applied Mathematics, Sciences, and Technology for National Defense
In the contemporary landscape, combat vehicles are tasked with meeting multifaceted demands, ranging from fortified defense capabilities to enhanced operational versatility and lethal efficacy. At the crux of these requirements lies the pivotal challenge
Jofim Yordaniel Napitupulu, Riri Murniati, Adhi Kusumadjati, Agung Hirawan, Mochamad Ibnu Alwan, Ramandasoavina Blanchard   +5 more
doaj   +1 more source

Preparation of Ultrafine Spherical Al-Mg Alloy and Its Energy Release Characteristics in Explosives

Metals
The substitution of aluminum powder with highly reactive ultrafine aluminum-based metal fuels has a significant impact on the energy release of aluminum-containing energetic materials because of their excellent energy density and combustion performances.
Junhui Liu, Jie Yao, Zichao Wang, Wei Liu, Jianxin Nie, Shi Yan   +5 more
doaj   +1 more source

Influence of stoichiometry of aluminum nitride films composition on the dielectric response

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The effect of non-stoichiometry of thin single-crystal layers of aluminum nitride (AlN) on their structure and dielectric properties was investigated. Thin AlN layers were grown by chloride-hydride epitaxy on a silicon substrate with a nanoscale buffer ...
A.V. Solnyshkin, I.T. Zezyanov, O.N. Sergeeva, S.A. Kukushkin, M.V. Staritsyn, S.S. Sharofidinov, N.V. Sharenkova, S.V. Senkevich, I.P. Pronin   +8 more
doaj   +1 more source

Over 500°C stable transparent conductive oxide for optoelectronics

InfoMat
High‐temperature stable transparent conductive oxides (TCOs) are highly desirable in optoelectronics but are rarely achieved due to the defect generation that is inevitable during high‐temperature air annealing.
Peng Li, Fangchao Li, Jiani Ma, Dong Lin, Jiangang Ma, Lizhi Ding, Junjun Guo, Xingzhong Cao, Junwei Shi, Haiyang Xu, Yichun Liu   +10 more
doaj   +1 more source

Effects of Incorporating High-Volume Fly Ash into Tricalcium Silicate on the Degree of Silicate Polymerization and Aluminum Substitution for Silicon in Calcium Silicate Hydrate. [PDF]

Materials (Basel), 2017
Bae S, Taylor R, Kilcoyne D, Moon J, Monteiro PJM.   +4 more
europepmc   +1 more source

Electrochemical potentials of layered oxide and olivine phosphate with aluminum substitution: A first principles study

Bulletin of Materials Science, 2013
A. Varanasi, Phani Kanth Sanagavarapu, Arghya Bhowmik, M. Bharadwaj, B. Narayana, U. Waghmare, Dipti Deodhare, Alind Sharma   +7 more
semanticscholar   +1 more source

Effects of Carbon Doping on the Structural, Energetic, and Electronic Properties of Intrinsic Defects in α‑Al₂O₃. [PDF]

ACS Omega
Zhao F, Wang H, Wang F, Tian Y.
europepmc   +1 more source