Results 41 to 50 of about 547,292 (342)
Mechanism of reduced sintering temperature of Al2O3–ZrO2 nanocomposites obtained by microwave hydrothermal synthesis [PDF]
, 2018 A novel method to obtain Al2O3–ZrO2 nanocomposites is presented. It consists of the co-precipitation step of boehmite (AlO(OH)) and ZrO2, followed by microwave hydrothermal treatment at 270 °C and 60 MPa, and by calcination at 600 °C.
Ganin, Alexey +7 more
core +1 more source
Enhancement of Cobalt Catalyst performance and Stability in Fischer-Tropsch Synthesis Using Graphene Nanosheets as Catalyst Support [PDF]
شیمی کاربردی روز, 2016 Graphene nano sheets (GNS) supported cobalt catalyst, is introduced for Fischer-Tropsch synthesis (FTS). The catalyst was prepared using wet impregnation method with cobalt loading of 15.0 wt%.
Seyedeh Somayeh Taghavi +2 more
doaj +1 more source
Electronic band structure and carrier effective mass in calcium aluminates [PDF]
, 2007 First-principles electronic band structure investigations of five compounds of the CaO-Al2O3 family, 3CaO.Al2O3, 12CaO.7Al2O3, CaO.Al2O3, CaO.2Al2O3 and CaO.6Al2O3, as well as CaO and alpha-, theta- and kappa-Al2O3 are performed.
A. C. Tas +15 more
core +3 more sources
The effect of precursor composition and sintering additives on the formation of ß-sialon from Al, Si and Al2O3 powders [PDF]
, 2011 A study was performed to investigate the effect of increasing the Al or Al2O3 precursor content, above the stoichiometric amount, on the formation of β-sialon by pressureless sintering of Al, Si and Al2O3 powders in flowing nitrogen gas.
Ewing, Helen, Yang, S.
core +1 more source
Revista de Metalurgia, 2020 La mezcla de polvo de Ti+Ni3Al+Al2O3 a base de Fe se alea mecánicamente en un molino de bolas Spex. Los compuestos con adición de Ti+Ni3Al+Al2O3 a base de Fe se produjeron a una temperatura de sinterización de 1000 °C durante un tiempo de 1 h.
Tanju Teker, S. Osman Yilmaz
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Bulletin of Chemical Reaction Engineering & Catalysis, 2020 According to Authors request (10th December 2020), Corrigendum to: Djebarri, B., Touahra, F., Aider, N., Bali, F., Sehailia, M., Chebout, R., Bachari, K., Halliche, D. (2020).
Baya Djebarri +7 more
doaj +1 more source
High temperature stability of H-diamond high frequency MOSFET with 300°C grown Al2O3 dielectric
Functional Diamond, 2023 The high frequency H-diamond metal-oxide-semiconductor field effect transistors (MOSFETs) were fabricated on single diamond substrate using 300°C ALD grown Al2O3 as gate dielectric and passivation layer.
Ma Yuanchen +8 more
doaj +1 more source
Preparation of pure boehmite, alpha-Al2O3 and their mixtures by hydrothermal oxidation of aluminium metal [PDF]
, 1997 A hydrothermal oxidation process for preparing pure boehmite, alpha-Al2O3, and their mixtures by oxidation of pure aluminum metal is described, and the reaction mechanisms involved are identified. SEM images are presented which show distinct morphologies
Jaleel, VA, Kannan, TS, Panda, PK
core