Search Results

You are looking at 1 - 10 of 3,562 items for :

  • "Oxidation" x
  • Chemistry and Chemical Engineering x
  • Refine by Access: All Content x
Clear All

Introduction Reactive elements, especially rare earths (RE) have been used to improve high-temperature oxidation resistance of chromium dioxide and alumina forming alloys. The improvements are in the form of reduced oxidation

Restricted access
Journal of Thermal Analysis and Calorimetry
Authors:
Juliusz Leszczynski
,
Krzysztof T. Wojciechowski
, and
Andrzej Leslaw Malecki

thermoelectric generators working at elevated temperatures. During the intensive studies on these materials it was also found that skutterudites undergo oxidation and decomposition at temperatures above 400 °C, the temperature is much lower than the peritectic

Open access

Introduction The wide application of tool steels is attributed to their special mechanical properties that are required in many mechanical devices. Moreover, the oxidation resistance at high temperatures is also required in

Restricted access

parts directly according to CAD model [ 5 ]. The study presents an experimental investigation about the oxidation process of the nc-TiC in 316L steel matrix nanocomposites prepared by selective laser sintering/melting (SLS/M) method using

Open access

reactor core and the fuel pebbles. Knowledge of the high temperature oxidative behaviour of the graphite materials utilized in such reactors is important for design and accident modelling purposes [ 1 , 2 ]. The nuclear fuel is embedded in a graphite

Restricted access

Introduction Humans have coexisted with nanoparticles—both generated in natural processes (erosion, volcanic eruptions), or artificial (combustion)—from immemorial time. In general, they were composed by common metal oxides

Restricted access

laid on top of an open charcoal burning bed, the so-called roasting bed, for air partial oxidation at the solid state (reaction 1 ). The process may last one day or more. Then, in order to separate iron and copper in two immiscible phases, the roasted

Restricted access
Reaction Kinetics, Mechanisms and Catalysis
Authors:
R. Thinesh Kumar
,
N. Clament Sagaya Selvam
,
T. Adinaveen
,
L. John Kennedy
, and
J. Judith Vijaya

Introduction Nanostructured metal aluminate spinels constitute an interesting class of oxide ceramics with important technological applications such as lower temperature sinterability, greater thermal stability, increased

Restricted access

Introduction Heterogeneous catalyzed gas phase oxidation plays a vital role in the chemical industry. In fact, selective oxidation is the simplest functionalization method; in particular, more than 60% of products synthesized

Restricted access

attracted increasing interest since Haruta et al. [ 2 ] reported that CO oxidation could be achieved at room temperature over gold catalysts when very small gold nanoparticles were dispersed on suitable oxide supports. So far, the catalytic activity of gold

Restricted access