Synthesis of Copper Containing Zeolites: New, Simple and Efficient Method for Quantitative Exchange

1992 ◽  
Vol 57 (4) ◽  
pp. 809-816 ◽  
Author(s):  
Michel H. Gubelmann ◽  
Michel Guisnet ◽  
Guy Perot ◽  
Yannick Pouilloux
Keyword(s):  
High Temperature ◽  
Efficient Method ◽  
Exchange Capacity ◽  
New Technique ◽  
Water Mixture ◽  
New Materials ◽  
A New Technique ◽  
Hydrolysis Of

A new technique is described which allows the quantitative exchange of copper(II) into ZSM-5 zeolites. The sequence consists of two steps: (i) impregnation of the zeolite with copper(II) in amounts higher than the exchange capacity; (ii) leaching of the copper in excess with respect to the exchange capacity with a chlorobenzene-water mixture at high temperature. The performances of the new materials in the hydrolysis of chlorobenzene, as well as preliminary informations on the nature of the catalyst and the type of mechanism are presented.

Quickstep Processing of Polymeric Composites

2017 ◽  
pp. 894-919
Author(s):  
Laraib Alam Khan
Keyword(s):  
Basic Principle ◽  
Polymeric Composites ◽  
Processing Method ◽  
Literature Survey ◽  
New Technique ◽  
New Materials ◽  
Aerospace Materials ◽  
Materials Development ◽  
A New Technique ◽  
Out Of Autoclave

This chapter gives an overview of Quickstep processing method, which is relatively a new technique for manufacturing composites. In this chapter, different aspects of Quickstep processing are highlighted. Since Quickstep processing is an Out-Of-Autoclave (OOA) technique, a brief description of autoclave processing is provided. Basic principle of Quickstep processing and functionality of typical Quickstep plant are also explained. Due to changed chemo-rheology, methodology for cure optimization of different prepregs and composites are discussed with examples. This chapter also includes the literature survey of different aerospace materials being investigated in Quickstep, the potential of new materials development for this process, the melding technique, in service capabilities of Quickstep cured samples and journey of Quickstep from patent to commercialization. Although the technique is commercialized now, few suggestions in the end are provided for the improvement of process.

A New Technique for Characterizing Comonomer Distribution in Polyolefins: High-Temperature Thermal Gradient Interaction Chromatography (HT-TGIC)

2011 ◽  
Vol 44 (8) ◽  
pp. 3062-3072 ◽  
Author(s):  
Rongjuan Cong ◽  
Willem deGroot ◽  
Al Parrott ◽  
Wallace Yau ◽  
Lonnie Hazlitt ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Gradient ◽  
New Technique ◽  
A New Technique

Measurement of Local Creep Deformation in Cross-Weld Specimen by Optical Fiber Marking and Remote Monitoring

2001 ◽  
Vol 124 (1) ◽  
pp. 54-58 ◽  
Author(s):  
Shan-Tung Tu ◽  
Jian-Ming Gong ◽  
Xiang Ling ◽  
Xiao-Yuan He
Keyword(s):  
High Temperature ◽  
Optical Fiber ◽  
Creep Deformation ◽  
Remote Monitoring ◽  
Small Region ◽  
New Technique ◽  
Deformation Localization ◽  
High Temperature Components ◽  
A New Technique

Creep deformation localization is a common occurrence generally found in high temperature components, typically at weldments and geometrical discontinuities. The deformation in a small region cannot be measured by a conventional displacement gage. A new technique for measuring long-term local creep deformation was developed. It uses quartz optical fiber marking, remote monitoring, and image processing. Long-term measurements of the creep deformations of base metal, weld metal, and heat-affected zone in cross-weld specimens were performed at high temperature, which verify the new technique. Strain distributions and evolutions in the weldments are obtained.

scholarly journals In situ high-pressure and high-temperature X-ray microtomographic imaging during large deformation: A new technique for studying mechanical behavior of multiphase composites

Geosphere ◽  
2011 ◽  
Vol 7 (1) ◽  
pp. 40-53 ◽  
Author(s):  
Yanbin Wang ◽  
Charles Lesher ◽  
Guillaume Fiquet ◽  
Mark L. Rivers ◽  
Norimasa Nishiyama ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Large Deformation ◽  
New Technique ◽  
X Ray ◽  
Multiphase Composites ◽  
A New Technique

Quickstep Processing of Polymeric Composites

2015 ◽  
pp. 373-398
Author(s):  
Laraib Alam Khan
Keyword(s):  
Basic Principle ◽  
Polymeric Composites ◽  
Processing Method ◽  
Literature Survey ◽  
New Technique ◽  
New Materials ◽  
Aerospace Materials ◽  
Materials Development ◽  
A New Technique ◽  
Out Of Autoclave

This chapter gives an overview of Quickstep processing method, which is relatively a new technique for manufacturing composites. In this chapter, different aspects of Quickstep processing are highlighted. Since Quickstep processing is an Out-Of-Autoclave (OOA) technique, a brief description of autoclave processing is provided. Basic principle of Quickstep processing and functionality of typical Quickstep plant are also explained. Due to changed chemo-rheology, methodology for cure optimization of different prepregs and composites are discussed with examples. This chapter also includes the literature survey of different aerospace materials being investigated in Quickstep, the potential of new materials development for this process, the melding technique, in service capabilities of Quickstep cured samples and journey of Quickstep from patent to commercialization. Although the technique is commercialized now, few suggestions in the end are provided for the improvement of process.

A New Technique to Remove Hydrogen Chloride Gas at High Temperature Using Hydrogrossular

2003 ◽  
Vol 42 (5) ◽  
pp. 1023-1027 ◽  
Author(s):  
Satoru Fujita ◽  
Kenzi Suzuki ◽  
Toshiaki Mori ◽  
Yasuo Shibasaki
Keyword(s):  
High Temperature ◽  
Hydrogen Chloride ◽  
New Technique ◽  
A New Technique

High temperature conductive polymers II. A new technique for introducing conductivity

1986 ◽  
Vol 15 (2-3) ◽  
pp. 249-258 ◽  
Author(s):  
R. Liepins ◽  
B. Jorgensen ◽  
A. Nyitray ◽  
S.E. Wentworth ◽  
D.M. Sutherlin ◽  
...  
Keyword(s):  
High Temperature ◽  
Conductive Polymers ◽  
New Technique ◽  
A New Technique
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