Rajiv K. Kalia, Aiichiro Nakano, Andrey Omeltchenko, Kenji Tsuruta, and Priya Vashishta Concurrent Computing Laboratory for Materials Simulations, Department of Physics and Astronomy and Department of Computer Science, Louisiana State University, Baton Rouge, Louisiana 70803 (Received 4 November 1996) Using 106-atom molecular-dynamics simulations, we investigate dynamic fracture in nanophase Si...

Abstract This paper aims to study a passivation technology and process of iron nanopowder, provides basic theory experimental data for promoting the practical application nanopowder as high-efficiency catalyst in production ammonia. There are two specific objectives. The first one is provide nanometal powder device prevent nano metal from being oxidized deactivated. second method using passivat...

Currently, the need for high performance heaters industrial application is increasing, and repeated wear, rapid temperature change, uneven can cause deteriorating quality reduced productivity. The ceramic heater in this study consists of a substrate, an electrode layer, protective low-melting glass frit was used all layers to allow low-temperature processing. As substrate heater, Si3N4, which t...

We have investigated the influence of a contact etch-stop layer ~ESL! on the local mechanical stress in a deep sub-micrometer complementary metal oxide semiconductor ~CMOS! field-effect transistor using convergent-beam electron diffraction with nanoscale resolution. By introducing a thin buffer layer of SiOxNy underneath the Si3N4 contact ESL, we have shown that the compressive channel strain c...

A comprehensive study of the intrinsic reliability of a 1.4-nm (equivalent oxide thickness) JVD Si3N4 gate dielectric subjected to constant-voltage stress has been conducted. The stress leads to the generation of defects in the dielectric. As the result, the degradation in the threshold voltage, subthreshold swing, gate leakage current, and channel mobility has been observed. The change in each...

The main aim of this paper is to report the impact of the addition of cellulose nanocrystals (CNC) on the thermal, mechanical, and permeability properties of poly (lactic acid). The thin films were prepared using a modified solvent casting method. The films were fortified with either of two antimicrobial agents: silver (Ag) nanopowder or a peptide. The microstructure, morphology, oxygen and wat...

Previous studies using gram-positive and -negative bacteria demonstrated that hydrolysis of silicon nitride (Si3N4) in aqueous suspensions elutes nitrogen produces gaseous ammonia while buffering pH. According to immunochemistry assays, fluorescence imaging, situ Raman spectroscopy, we demonstrate here the antipathogenic surface chemistry Si3N4 can be extended polymethylmethacrylate (PMMA) by c...

Three decades of research in the last century developed silicon nitride (Si3N4) as one strongest and toughest ceramic material for structural applications; but this century, we newly discovered its gifted surface biochemistry. In an aqueous environment, Si3N4 undergoes hydrolysis with slow continuous elution both nitrogen. A unique environment is created, which greatly enhances healing soft oss...

in this study metal oxide nano powder namely nio nanopowder was prepared .the producedmetal oxide was characterized and used as potential adsorbent for the removal of pb and zn from aqueoussolution. the rate of uptake of the pb and zn are rapid in the beginning and the time required for equilibrium adsorption is 120 min .the time of equilibrium as well as time required to achieve a definite fra...