The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform
B. A. Keiser - One of the best experts on this subject based on the ideXlab platform.
-
An inorganic Nanosize Particle : part of a new retention/dewatering system
1999Co-Authors: A. Gerli, F. Oosterhof, B. A. KeiserAbstract:Paper mills are using a new microParticle programme to improve retention and press dewatering and to enhance sheet properties. This paper describes the trial of the system on the EuroFEX pilot PM at STFI in Stockholm where a fine paper furnish was used. The tests demonstrated improved dewatering in the forming and press sections, and indicated that formation can be improved by adjusting PM operating conditions. The new system produces a sheet with reduced porosity which is an advantage in coating operatings where porosity can impede coating efficiency.
-
an inorganic Nanosize Particle part of a new retention dewatering system
Paper technology, 1999Co-Authors: A. Gerli, F. Oosterhof, B. A. KeiserAbstract:Paper mills are using a new microParticle programme to improve retention and press dewatering and to enhance sheet properties. This paper describes the trial of the system on the EuroFEX pilot PM at STFI in Stockholm where a fine paper furnish was used. The tests demonstrated improved dewatering in the forming and press sections, and indicated that formation can be improved by adjusting PM operating conditions. The new system produces a sheet with reduced porosity which is an advantage in coating operatings where porosity can impede coating efficiency.
A. Gerli - One of the best experts on this subject based on the ideXlab platform.
-
An inorganic Nanosize Particle : part of a new retention/dewatering system
1999Co-Authors: A. Gerli, F. Oosterhof, B. A. KeiserAbstract:Paper mills are using a new microParticle programme to improve retention and press dewatering and to enhance sheet properties. This paper describes the trial of the system on the EuroFEX pilot PM at STFI in Stockholm where a fine paper furnish was used. The tests demonstrated improved dewatering in the forming and press sections, and indicated that formation can be improved by adjusting PM operating conditions. The new system produces a sheet with reduced porosity which is an advantage in coating operatings where porosity can impede coating efficiency.
-
an inorganic Nanosize Particle part of a new retention dewatering system
Paper technology, 1999Co-Authors: A. Gerli, F. Oosterhof, B. A. KeiserAbstract:Paper mills are using a new microParticle programme to improve retention and press dewatering and to enhance sheet properties. This paper describes the trial of the system on the EuroFEX pilot PM at STFI in Stockholm where a fine paper furnish was used. The tests demonstrated improved dewatering in the forming and press sections, and indicated that formation can be improved by adjusting PM operating conditions. The new system produces a sheet with reduced porosity which is an advantage in coating operatings where porosity can impede coating efficiency.
Eisuke Yagi - One of the best experts on this subject based on the ideXlab platform.
-
mechanisms of toughening and strengthening in ceramic based nanocomposites
Mechanics of Materials, 2002Co-Authors: Hideo Awaji, Seongmin Choi, Eisuke YagiAbstract:Toughening and strengthening mechanisms in ceramic-based nanocomposites were explained based on Griffith's energy equilibrium and residual stresses around second-phase nanoParticles dispersed in matrix grains. The residual thermal stresses around a spherical dispersed Particle within a concentric sphere of a matrix grain were specifically analyzed to clarify the effects of residual stresses on the toughening mechanism in the frontal process zone involving nanocracking and on the strengthening mechanism caused by nucleation of dislocations. The analytical results revealed that the ratio of the thermal expansion coefficients of the Particle and matrix has a marked effect on residual stresses and the estimated residual stresses were of sufficient magnitude to generate lattice defects such as dislocations around the Particle even in ceramics, and that the Nanosize Particle within a matrix can only create dislocations around the Particle. The toughening and strengthening mechanisms for nanocomposites were also discussed based on the analytical results and explained schematically.
Gary L. Messing - One of the best experts on this subject based on the ideXlab platform.
-
Scale-up Equipment for Nanosize Particle Synthesis
1998Co-Authors: Gary L. MessingAbstract:Abstract : The goal of the ARPA/AFOSR supported research program is to establish a scientific foundation for the low cost preparation of bulk single crystal quality materials by templated grain growth (TGG); a process in which solid phase epitaxy is used to initiate solid state grain growth of a specific orientation in a polycrystalline matrix. We are investigating two classes of TGG; surface TGG in which a single crystal is contacted with a dense, polycrystalline ceramic and in situ TGG in which anisometric Particles are uniformly dispersed and oriented in a polycrystalline matrix. The matrix must be fully dense and consist of sub 100 nm scale grains for TGG to work. Bi4Ti3O12 and Sr2Nb2O7 have been selected because of the need for high temperature piezoelectrics. These materials can be poled only when they are highly oriented materials. We are also studying TGG for the low cost preparation of bulk single crystal quality BaTiO3 and (Ba(1-x)Srx)TiO3. This process is designed to provide large single crystals at considerably less expense than top-seeded solution grown BaTiO3 which cost on the order of $5000 per crystal (Sanders Inc., Nashua, New Hampshire). Ultimately, such crystals are attractive for photorefractive applications including optical storage, phase conjugate mirrors, and multiple wave mixing.
F. Oosterhof - One of the best experts on this subject based on the ideXlab platform.
-
An inorganic Nanosize Particle : part of a new retention/dewatering system
1999Co-Authors: A. Gerli, F. Oosterhof, B. A. KeiserAbstract:Paper mills are using a new microParticle programme to improve retention and press dewatering and to enhance sheet properties. This paper describes the trial of the system on the EuroFEX pilot PM at STFI in Stockholm where a fine paper furnish was used. The tests demonstrated improved dewatering in the forming and press sections, and indicated that formation can be improved by adjusting PM operating conditions. The new system produces a sheet with reduced porosity which is an advantage in coating operatings where porosity can impede coating efficiency.
-
an inorganic Nanosize Particle part of a new retention dewatering system
Paper technology, 1999Co-Authors: A. Gerli, F. Oosterhof, B. A. KeiserAbstract:Paper mills are using a new microParticle programme to improve retention and press dewatering and to enhance sheet properties. This paper describes the trial of the system on the EuroFEX pilot PM at STFI in Stockholm where a fine paper furnish was used. The tests demonstrated improved dewatering in the forming and press sections, and indicated that formation can be improved by adjusting PM operating conditions. The new system produces a sheet with reduced porosity which is an advantage in coating operatings where porosity can impede coating efficiency.
