University of Connecticut

Other

Inframat Corporation

U.S. Nanocorp, Inc.

Nitin P Padture

Maurice Gell

Anthony DeCarmine

Eric H Jordan

Subra Suresh

Danny Tongsan Xiao

Xinqing Ma

Antonios E Giannakopoulos

Rajendran Thampuran

Ole Jorgensen

Juthamas Jitcharoen

Marten Olsson

Liangde Xie

Paul G Klemens

A thermal spray process comprises injecting precursor solution droplets into the hot zone of the thermal spray flame. Also described are materials resulting from the process.

Coatings, materials, articles, and methods of making thereof

An article is provided that is highly resistant to localized normal indentation, or indentation tensile stresses, against its surface. The article is a stacked array of at least five layer units each having local anisotropy in at least one direction. Each unit has an adjacent unit that differs in a mechanical property, or offset in principle axis of anisotropy by less than 45&deg;. The article forms part of a construction constructed and positioned to withstand indentation, or contact damage, detrimental to its use having a component normal to any tangent of the surface. The article can be a stacked array of fiber-reinforced polymeric material, i.e., prepreg, with the fiber direction offset from each layer to the next by less than 45&deg;. Methods of making the article and methods of use of the article to resist impact are provided. Also provided are articles having surfaces, the surfaces being constructed and arranged to withstand sliding contact stress. The surfaces of these articles are functionally-graded.

Functionally-graded materials and the engineering of tribological resistance at surfaces

A method for identifying ceramics suitable for use as thermal barrier coatings is presented, based on parameters associated with thermal conductivity, oxygen diffusivity, thermal expansion coefficient, maximum temperature capability, hardness, elastic modulus, density, and chemical reactivity. A ceramic thermal barrier coating and method of manufacture is further presented, the ceramic comprising yttrium aluminum garnet (Y.sub.3 Al.sub.5 O.sub.12, or YAG)-based ceramics. Such ceramics are based on yttrium aluminum garnet or other ceramics with the garnet structure and alloys thereof. The ceramics in accordance with the present invention have low thermal conductivity, and are more potentially durable than prior art zirconia based ceramics.

Ceramic materials for thermal barrier coatings

Growing community of inventors

Storrs, CT, United States of America

Nitin P Padture