Due to its outstanding mechanical characteristics, diamond is an ideal material for use in micro- and nano-electromechanical systems. In this paper, we report on the investigation of vibrational properties singly clamped needlelike microcrystallites with nanoscale tips. The single-crystal needles were produced by selective oxidation polycrystalline films grown using chemical vapor deposition. s...

Title of dissertation: HIGH ELASTIC MODULUS NANOPOWDER REINFORCED RESIN COMPOSITES FOR DENTAL APPLICATIONS Yijun Wang, Doctor of Philosophy, 2007 Dissertation directed by: Associate Professor Isabel K. Lloyd Department of Material Science and Engineering Dental restorations account for more than $3 billion dollars a year on the market. Among them, all-ceramic dental crowns draw more and more at...

Evaluation and prediction of performance of diamond wire saw is one of the most important factors involved in planning the dimension stone quarries. The wear rate of diamond wire saw can be investigated as a major criterion to evaluate its performance. The wear rate of diamond wire saw depends upon non-controlled parameters related to rock characteristics and controlled parameters related to ch...

diamond like carbon (dlc) film was grown by hot filament chemical vapor deposition (hfcvd)technique. in the present work, we investigated the quality of the dlc films groew on the substratesthat were coated with various metal nanocatalysts (au and ni). a combination of ch4/ar/h2 rendersthe growth of carbon nanostructures technique (diamond like carbon). the utilized samples werecharacterized by...

Large spatial quantum superposition of size ${\cal O}(1-10)~{\rm \mu \text{m}}$ for mass $m \sim 10^{-17}-10^{-14}~\text{kg}$ is required to probe the foundations mechanics and testing classical nature gravity via entanglement in a laboratory. In this paper, we will show that it possible accelerate two spin states macroscopic nano-crystal sourced by inhomogeneous nonlinear magnetic field Stern-...

in this study, thermal performance of a cylindrical heat pipe is investigated numerically. three different types of water based nanofluids, namely (al2o3+water), (diamond+water) and (multi-wall carbon nano tube (mwcnt) +water) have been used. the influence of using the simple nanofluids and mwcnt nanofluid on the heat pipe characteristics such as liquid velocity, pressure profile, temperature p...

We theoretically propose a method to realize optical nonreciprocity in rotating nano-diamond with nitrogen-vacancy (NV) center. Because of the relative motion NV center respect propagating fields, frequencies fields are shifted due Doppler effect. When control and probe incident from same direction, two-photon resonance still holds as shifts two same. Thus, electromagnetically-induced transpare...

Five carbonaceous nano-additives (graphite, graphene, carbon black, nanotubes, and diamond) had different impacts on the sinterability, microstructural evolution, properties of titanium carbide. In this research, sintering by spark plasma was employed to produce monolithic TiC carbon-doped ceramics under parameters 1900 ºC, 10 min, 40 MPa. The black additive best performance in densifying TiC, ...