Browsing by Author "Nicholls, J. R."

Characterisation and Material Removal Properties of the RAP™ Process

O'Brien, William John (Cranfield University, 2011)

The Reactive Atom Plasma® (RAP) process is a plasma chemical etching process. RAP was developed at RAPT Industries as a process for removing subsurface damage from silicon carbide optics. The process is being investigated ...

Computer model to predict electron beam-physical vapour deposition (EB-PVD) and thermal barrier coating (TBC) deposition on substrates with complex geometry

Pereira, Vitor Emanuel M. Loureiro S. (Cranfield University, 2000-07)

For many decades gas turbine engineers have investigated methods to improve engine efficiency further. These methods include advances in the composition and processing of materials, intricate cooling techniques, and the ...

Cracking behaviour, failure modes and lifetime analysis of M320 abradable compressor seal coating

Goergen, Sandra (Cranfield University, 2012-10)

Metco 320 is a AlSi-hBN-polyester abradable, used in the high pressure compressor of commercial gas turbines. The material response to cyclic heating and cooling, and the resulting changes in microstructure, as well as ...

Degradation of Environmental Protection Coatings for Gas Turbine Materials

Nalin, Laura (Cranfield University, 2008-12)

Nowadays, problems of component materials reliability in gas and oil-fired gas turbines focus on assessing the potential behaviour of commonly employed coatings, in order to avoid expensive and unpredictable failure in ...

Design, manufacture, and high temperature behaviour of a-phase bondcoat for thermal barrier coating

Carlin, Maxime (Cranfield University, 2007)

In order to improve jet engine efficiency and performance, manufacturers have been trying over the last five decades to increase the working temperature of gas turbines. This was achieved by improving materials performance ...

Development of Coatings for Gas Turbines Burning Biomass and Waste-Fuels

Bradshaw, A. (Cranfield University, 2009-11)

Worldwide, carbon dioxide emission reductions are in progress following the Kyoto Protocol implementation programme to mitigate climate change. More stringent reductions are expected to follow the present programme which ...

Development of EB-PVD TBC'S : the role of deposition temperature and plasma assistance

Jaslier, Yann (Cranfield University, 1995-06)

Gas turbine manufacturers have achieved continuingly improved engine efficiency and thrust-to-weight ratio by designing with increased Turbine Entry Temperature (TET). The protection of High Pressure Turbine (HPT) aerofoils ...

Development of microtubular solid oxide fuel cells design, fabrication and performance.

Camilleri, Alastair (2017-08)

Solid oxide fuel cells (SOFCs) are the most efficient energy conversion devices known. Many designs exist, with most current ones based on planar, tubular or so-called hybrid geometries. Tubular designs have many advantages ...

Development of novel coatings to resist fireside corrosion in biomass-fired power plants

Orlicka, Dominika (Cranfield University, 2016-07)

The emission of CO2 to the atmosphere from firing conventional fossil fuels has become a major concern for the power industry, due to the enhanced greenhouse effect and global warming predictions. The increasing ...

Effect of manufacturing parameters on TBC systems cyclic oxidation lifetime

Chirivi, Laura (Cranfield University, 2011-12)

Aero-gas turbine engines have to meet reliability, durability and fuel e ciency requirements. High turbine inlet temperatures may contribute to minimise fuel consumption and, in turn, environmental impact of the engine. ...

Elevated Temperature Oxidation and Corrosion of a Titanium Aluminide Alloy

Leggett, Jonathan (Cranfield University, 1997-10)

Titanium aluminides are being developed to expand the temperature capability of titanium alloys with maximum service temperatures around 700*C. These materials also have the ability to replace nickel superalloys with ...

Erosion resistance in metal - ceramic multilayer coatings for gas turbine compressor applications

Goat, Christopher (Cranfield University, 1995-01)

The erosion resistance of 50 m metal-ceramic multilayer coatings has been investigated under impact conditions comparable to those in a gas turbine compressor cascade. lt was possible to improve upon the erosion resistance ...

Fabrication of Smart Intercalated Polymer - SMA Nanocomposite

Anjum, Sadaf Saad (Cranfield University, 2015-03-16)

Mimicking nature gives rise to many important facets of biomaterials. This study is inspired by nature and reports on the fabrication of an intercalated polymer-NiTi nanocomposite that mimics the structural order of urethral ...

Investigation into the environmental assisted crack initiation mechanism of CMSX-4 in simulated aero engine environments at 450 - 550°C.

Duarte Martinez, Fabian (Cranfield UniversitySATM, 2023-03)

The aviation industry has continued to increase the efficiency of gas turbine engines, which are now designed to operate on a wide variety of flight routes. In general, the efficiency drive has led to components spending ...

Investigation into the manipulation of the properties of Indium Tin Oxide (ITO) coatings

Atterbury, Clair (Cranfield UniversitySAS, 2008)

This thesis investigates the manipulation of the properties of Indium Tin Oxide (ITO) coatings. This is carried out with a combination of Experimental and Theoretical work. The coating of ITO onto a glass substrate was ...

A langmuir multi-probe system for the characterization of atmospheric pressure arc plasmas

Fanara, C. (Cranfield UniversitySchool of Industrial and Manufacturing Science, 2003-04)

The 'high-pressure' atmospheric (TIG) arc plasma is studied by means of a multi-Langmuir probe system. In order to determine the appropriate regime of operation, definitions of the plasma parameters for the description of ...

Low mass platinum aluminide bondcoat for thermal barrier coating

Saint-Ramond, Bertrand (2001)

During the last 30 years, Thermal Barrier Coating systems (TBCs) have been extensively used to protect the hottest part of aero-engines. They can extend significantly the lifetime of high pressure turbine blades and ...

Manufacture of novel intermetallic bond coats from the electroplating of ionic liquids

Craig, Mark (2010)

Gas turbine engines for both aerospace and power generation are constantly being revised to improve running efficiency and performance. Gas turbine engines essentially consist of three distinct regions: compressor, ...

Manufacture of Novel Intermetallic Bond Coats from the Electroplating of Ionic Liquids

Craig, Mark (2010)

Gas turbine engines for both aerospace and power generation are constantly being revised to improve running efficiency and performance. Gas turbine engines essentially consist of three distinct regions: compressor, ...

The Mechanism of Dross Formation on Aluminium and Aluminium Magnesium Alloys

Impey, S. A. (Cranfield University, 1989-12)

Metal loss is an unavoidable consequence of the large scale melting of aluminium and its alloys. The objective of such processing must be to minimise losses, both from an economic viewpoint and to ensure optimum quality ...

Browsing by Author "Nicholls, J. R."

Browsing by Author "Nicholls, J. R."

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