PRINCIPLES GOVERNING THE BEHAVIOR OF SOLID MATERIALS IN SEVERE HIGH TEMPERATURE ENVIRONMENTS

1965 ◽  
Author(s):  
S. R. Aspinall
Keyword(s):  
High Temperature ◽  
Solid Materials

Experimental Evidence of Clusters in Molten Alloys of the Eutectic Aluminum-Tin System by Means of a X-Ray-high Temperature-small Angle Scattering Apparatus

1970 ◽  
Vol 25 (7) ◽  
pp. 1085-1091 ◽  
Author(s):  
R. Hezel ◽  
S. Steeb
Keyword(s):  
High Temperature ◽  
Small Angle ◽  
Short Range ◽  
Eutectic System ◽  
Wide Angle ◽  
Molten Metals ◽  
Scattered Intensity ◽  
Solid Materials ◽  
X Ray ◽  
Angle Scattering

An apparatus for measuring X-Ray small- and wide angle scattering of solid materials and especially of molten metals with temperatures up to 1100 °C is described. Alloys of the eutectic system Al -Sn with tin-contents up to 30 At.-% are investigated. The influence of surface oxide layers on the scattered intensity is discussed. Correlation functions as well as the Guinier approximation yielded inhomogeneities with mean diameters up to 10 Å in the investigated melts. Therefore the dimensions of these so-called short range segregation zones correspond to those of the first coordination sphere

scholarly journals Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

2019 ◽  
Vol 3 (4) ◽  
pp. 83 ◽  
Author(s):  
Rosa
Keyword(s):  
High Temperature ◽  
Solar Radiation ◽  
Materials Processing ◽  
Future Trends ◽  
Solid Materials ◽  
Modular Systems ◽  
Solar Heat ◽  
Thermochemical Processes ◽  
Reaction Chambers ◽  
Concentrated Solar Radiation

Considering works published in the literature for more than a decade (period from January 2008 till June 2019), this paper provides an overview of recent applications of the so-called “solar furnaces”, their reactors, process chambers and related devices, aiming specifically at the processing of (solid) materials. Based on the author’s own experience, some prospects on future trends are also presented. The aim of this work is to demonstrate the tremendous potentialities of the usage of solar heat for materials processing, but also to reveal the necessity of further developing solar-driven high-temperature technologies (which are required to displace the use of electricity or natural gas). In particular, it is essential to improve the temperature homogeneity conditions inside reaction chambers for materials processing using solar heat. Moreover, new innovative modular systems, practical and flexible, for capture, concentration, control and conduction of concentrated solar radiation are suggested. Solar thermal technologies for the production of electricity, as well as solar thermochemical processes for production of gases or liquids, are outside the scope of this review.

Interaction of High Temperature Plasma Flowing from Long Cusp Trap with Solid Materials

1999 ◽  
Vol 35 (1T) ◽  
pp. 131-135
Author(s):  
N.I. Arkhipov ◽  
V.P. Bakhtin ◽  
S.M. Kurkin ◽  
V.M. Safronov ◽  
D.A. Toporkov ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid Materials ◽  
Temperature Plasma ◽  
High Temperature Plasma

Facility for assessing spectral normal emittance of solid materials at high temperature

2015 ◽  
Vol 54 (29) ◽  
pp. 8700 ◽  
Author(s):  
Luca Mercatelli ◽  
Marco Meucci ◽  
Elisa Sani
Keyword(s):  
High Temperature ◽  
Solid Materials ◽  
Normal Emittance ◽  
Spectral Normal Emittance

scholarly journals Sustainable Treatment of Heavy Metals by Adsorption on Raw Chitin/Chitosan

2021 ◽  
Author(s):  
Boukhlifi Fatima
Keyword(s):  
Heavy Metals ◽  
High Temperature ◽  
Adsorption Kinetics ◽  
Solid Materials ◽  
Equilibrium Time ◽  
Negative Effect ◽  
Sustainable Treatment ◽  
Raw Shrimp ◽  
Kinetics Of ◽  
Different Origin

The objective of this chapter was to treat metal pollution of wastewater rich in Pb2+, Cd2+, Cu2+, and Zn2+ ions by adsorption tests on the raw chitin/chitosan. Different origin namely shrimp (Ccre), crab (Ccra) and lobster (Clan). Raw shrimp chitin had a strong affinity for Pb2+ and Cd2+. The adsorption capacity of zinc on the crabs chitin is twice as great as that on the shrimp chitin. The kinetic study showed that more than 50% of these ions are adsorbed before equilibrium is reached (20 minutes). The adsorption kinetics also showed that the hardness of the shells has a negative effect on the kinetics of the adsorption process. Indeed, the adsorption of Pb2+ on the raw chitin shrimp requires only 30 minutes, while on the raw chitin lobster; the equilibrium time is 60 minutes. To ensure a sustainable treatment, sludge generated by adsorption of heavy metals was incinerated at high temperature. Incineration has led to calcite phases, which do not represent any toxicity on the environment and it can be recycled in the industry of solid materials (ceramics, cement, etc.). However, the regeneration of sludge by the acid changes the structure of the material and gives new adsorbent supports.

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