In order to determine the potential benefits and limitations of aluminide coatings, coatings made by chemical vapor deposition (CVD) on Feand Ni-base alloy substrates are being evaluated in various hightemperature environments. Testing of coatings on representative ferritic (Fe-9Cr-1Mo) and austenitic (type 304L stainless steel) alloys has found that high frequency thermal cycling (1h cycle tim...

Water vapor condensation is commonly observed in nature and routinely used as an effective means of transferring heat with dropwise condensation on nonwetting surfaces exhibiting heat transfer improvement compared to filmwise condensation on wetting surfaces. However, state-of-the-art techniques to promote dropwise condensation rely on functional hydrophobic coatings that either have challenges...

Thin-film coating plays a prominent role on the manufacture of many industrial devices. Coating can increase material performance due to the deposition process. Having adequate and precise model that can predict the hardness of PVD and CVD processes is so helpful for manufacturers and engineers to choose suitable parameters in order to obtain the best hardness and decreasing cost and time of in...

Background: A growing number of patients with End-Stage Renal Disease (ESRD) are undergoing long-term hemodialysis (HD).  HD needs a vascular access (VA) and complications of VA account for a sizable proportion of its costs. One of the important cardiovascular diseases (CVD) is atherosclerosis, which is a major cause of premature deaths in the world. So, it is essential to find the risk fa...

1 ABSTRACT A Monte-Carlo programme has been developed to simulate thin film deposition in a square groove. It demonstrates that conformal coating requires (1) the mean free part to be greater than the feature size; (2) a low sticking coefficient for incoming reactant molecules. 2 INTRODUCTION The increasing use of anisotropic etching in the manufacture of integrated circuits is stimulating rese...

• Coated ZrN sphere-UO 2 as surrogates for UN-UO accident tolerant fuel composites. Spheres coated with Mo or W nanopowders by developed processes and CVD. Use of spark plasma sintering to fabricate the composites at 1773 K 80 MPa. Both coating methods provide dense layers W. can protect nitride against interactions UO . Uranium (UN) spheres embedded in uranium dioxide (UO ) matrix is considere...