This research aims to determine the effect of dip coating process parameter, which are the concentration of the suspension, withdrawal speed and sintering temperature on the crystallinity, surface morphology, shear strength and the thickness of hydroxyapatite (HA) coating on cobalt alloys substrate as a prosthetic bone implant material candidate. The coating is done at 3 different concentration...

Structural disintegration or the loss of accessible surfaces of functional nanostructures due to processes involving mass transport (e.g. sintering) is a serious problem for any application of these materials at elevated temperatures, like in heterogeneous catalysis or chemical sensing. Phases with low sintering temperatures, e.g. some metals or metal oxides like zinc oxide (ZnO), are very sens...

The regeneration of functional tissue in osseous defects is a formidable challenge in orthopedic surgery. In the present study, a novel biomimetic composite scaffold, here called nano-hydroxyapatite (HA)/poly-ε-caprolactone (PCL) was fabricated using a selective laser sintering technique. The macrostructure, morphology, and mechanical strength of the scaffolds were characterized. Scanning elect...

Ammonium perchlorate (AP) is a common oxidizer in composite propellants, and its combustion behavior can be tailored by micro- nano-metal oxide catalysts. pellets were manufactured with nano-titanium iron at several mass loadings (0–3%) to isolate their effects on AP. The samples burned from 3.45 34.5 MPa (500–5000 psi) constant-volume strand bomb. Microscopy characterization was completed for ...

Low bearing capacity soils may pose serious construction concerns such as reduced and excessive hydro-associated volume changes. Proper soil remediation techniques must be planned implemented before commencing any on low soils. Environmentally friendly stabilizers are gradually replacing traditional with high carbon dioxide emissions lime cement. This study investigated the use of an alternativ...

Micro and nanostructural properties are believed to play a critical role in the osteoinductive capacity of bioceramic bone scaffolds. Physical characteristics also play an important role for optimum biological performance, including osteoconductivity and strength. In this study microstructural and nano-mechanical properties of a bioceramic bone scaffold were investigated as a function of the si...

Pristine complex quaternary hydride (LiBH4/2LiNH2) and its destabilized counterpart (LiBH4/2LiNH2/nanoMgH2) have recently shown promising reversible hydrogen storage capacity under moderate operating conditions. The destabilization of complex hydride via nanocrystalline MgH2 apparently lowers the thermodynamic heat values and thus enhances the reversible hydrogen storage behavior at moderate te...

The 3D printed antibacterial polymer products were rapidly sintered to obtain by selective laser sintering with highly dispersed Nano-silver modified Kaolin powder and polyamide/polypropylene composite engineering material. preparation method of not only shortens the period, but also guarantees precision quality product as well slow-release function Nano-silver.