scholarly journals Surface modification of calcium carbonates studied by inverse gas chromatography and the effect on mechanical properties of filled polypropylene

2004 ◽  
Vol 53 (4) ◽  
pp. 430-438 ◽  
Author(s):  
Gareth J Price ◽  
Deeba M Ansari
Keyword(s):  
Mechanical Properties ◽  
Gas Chromatography ◽  
Surface Modification ◽  
Inverse Gas Chromatography ◽  
Calcium Carbonates

scholarly journals An inverse gas chromatography study of calcination and surface modification of kaolinite clays

2003 ◽  
Vol 5 (24) ◽  
pp. 5552-5557 ◽  
Author(s):  
Gareth J. Price ◽  
Deeba M. Ansari
Keyword(s):  
Gas Chromatography ◽  
Surface Modification ◽  
Inverse Gas Chromatography

Surface modification of CaCO3 filler and its characterization using inverse gas chromatography (IGC)

2008 ◽  
Vol 3 (1) ◽  
pp. 99-104 ◽  
Author(s):  
Guangcheng Zhang ◽  
Xuetao Shi ◽  
Yajuan Xing ◽  
Ting Chen
Keyword(s):  
Gas Chromatography ◽  
Surface Modification ◽  
Inverse Gas Chromatography

Surface Energy of Silica Xerogels and Fumed Silica by Inverse Gas Chromatography and Inverse Liquid Chromatography

2002 ◽  
Vol 75 (5) ◽  
pp. 811-824 ◽  
Author(s):  
J. B. Donnet ◽  
Y. J. Li ◽  
T. K. Wang ◽  
H. Balard ◽  
G. T. Burns
Keyword(s):  
Gas Chromatography ◽  
Surface Modification ◽  
Liquid Chromatography ◽  
Surface Energy ◽  
Fumed Silica ◽  
Inverse Gas Chromatography ◽  
Chemical Properties ◽  
Silica Xerogels ◽  
Silica Surfaces ◽  
Physico Chemical

Abstract Inverse gas chromatography (IGC) and inverse liquid chromatography (ILC) have been used to detect the interaction energy between silicas (fumed silicas and silica xerogels) surfaces and probes molecules. The silica surfaces were modified chemically by trimethylsiloxane functions. Either IGC or ILC have detected the adsorption energy change following the surface modification. In IGC technique, the results with several probes show clearly the physico-chemical properties of the silica surfaces. ILC was developed to use bigger probe molecules which are more similar in structure to polymers. In this work, squalene, a non volatile molecule with 30 carbon atoms and several double bonds, was used in ILC to simulate elastomer molecules.

Surface Modification and its Influence on the Microstructure and Creep Resistance of Nickel Based Superalloy René 77 / Modyfikacja Powierzchniowa Oraz Jej Wpływ Na Mikrostrukture I Wytrzymałosc Na Pełzanie Odlewów Z Nadstopu Niklu Ren´E 77

2013 ◽  
Vol 58 (1) ◽  
pp. 95-98 ◽  
Author(s):  
M. Zielinska ◽  
J. Sieniawski
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Surface Modification ◽  
Turbine Blades ◽  
Processing Parameters ◽  
Grain Structure ◽  
Creep Tests ◽  
Cobalt Aluminate ◽  
Nickel Based Superalloy ◽  
Average Grain Size

Superalloy René 77 is very wide used for turbine blades, turbine disks of aircraft engines which work up to 1050°C. These elements are generally produced by the investment casting method. Turbine blades produced by conventional precision casting methods have coarse and inhomogeneous grain structure. Such a material often does not fulfil basic requirements, which concern mechanical properties for the stuff used in aeronautical engineering. The incorporation of controlled grain size improved mechanical properties. This control of grain size in the casting operation was accomplished by the control of processing parameters such as casting temperature, mould preheating temperature, and the use of grain nucleates in the face of the mould. For nickel and cobalt based superalloys, it was found that cobalt aluminate (CoAl2O4) has the best nucleating effect. The objective of this work was to determine the influence of the inoculant’s content (cobalt aluminate) in the surface layer of the ceramic mould on the microstructure and mechanical properties at high temperature of nickel based superalloy René 77. For this purpose, the ceramic moulds were made with different concentration of cobalt aluminate in the primary slurry was from 0 to 10% mass. in zirconium flour. Stepped and cylindrical samples were casted for microstructure and mechanical examinations. The average grain size of the matrix ( phase), was determined on the stepped samples. The influence of surface modification on the grain size of up to section thickness was considered. The microstructure investigations with the use of light microscopy and scanning electron microscopy (SEM) enable to examine the influence of the surface modification on the morphology of ’ phase and carbides precipitations. Verification of the influence of CoAl2O4 on the mechanical properties of castings were investigated on the basis of results obtained form creep tests.

Characterization of surface properties of 1-allyl-3-methylimidazolium chloride ionic liquid by inverse gas chromatography

2014 ◽  
Vol 31 (2) ◽  
pp. 147-150 ◽  
Author(s):  
Yali CHEN ◽  
Qiang WANG ◽  
Lishuang DENG ◽  
Zhengfang ZHANG ◽  
Jun TANG
Keyword(s):  
Gas Chromatography ◽  
Ionic Liquid ◽  
Surface Properties ◽  
Inverse Gas Chromatography

Inverse Gas Chromatography

1990 ◽  
Author(s):  
R. J. Laub
Keyword(s):  
Gas Chromatography ◽  
Inverse Gas Chromatography

On the application of inverse gas chromatography to interactions in mixed stationary phases

1991 ◽  
Vol 24 (12) ◽  
pp. 3522-3527 ◽  
Author(s):  
Z. H. Shi ◽  
H. P. Schreiber
Keyword(s):  
Gas Chromatography ◽  
Inverse Gas Chromatography ◽  
Stationary Phases ◽  
Mixed Stationary Phases
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