We designed an in vivo study to determine if the superimposition of a microtexture on the surface of sintered titanium beads affected the extent of bone ingrowth. Cylindrical titanium intramedullary implants were coated with titanium beads to form a porous finish using commercial sintering techniques. A control group of implants was left in the as-sintered condition. The test group was etched i...

Calcium Phosphate ceramic has been widely used in bone tissue engineering due to its excellent biocompatibility and biodegradability. However, low mechanical properties and biodegradability limit their potential applications. In this project, hydroxyapatite (HA) and calcium phosphate bioglass were used to produce porous tri-calcium phosphate (TCP) bioceramic scaffolds. It was found that porous ...

Abstract Heat pipes provide highly efficient heat transfer and are powerful tools in thermal management systems. In contrast to most established systems, operating within moving systems such as electric vehicles or machine exposed unsteady acceleration forces. order guarantee proper pipe function scenarios involving accelerated movement, it is necessary examine the effect of forces on behavior....

The limitations of current grafting materials have driven the search for synthetic alternatives to cancellous bone. A variety of biodegradable polymer foams composed of poly(lactide-coglycolide) [PLAGA] have been evaluated for such uses. However, structural limitations may restrict the clinical use of these scaffolds. We have developed a sintered microsphere scaffold composed of 85:15 poly(lact...

In loop heat pipes (LHPs), wick materials and their structures are important in achieving continuous transfer with a favorable distribution of the working fluid. This article introduces characteristics different wicks: (i) sintered stainless steel (ii) ceramic. The evaporator has flat-rectangular assembly under gravity-assisted conditions. Water was used as fluid, performance LHP analyzed terms...

Abstract--In this work, an analytical and numerical study was carried out for the steady incompressible vapor and liquid flow in an asymmetrical flat plate heat pipe. The pseudo-three-dimensional analytical model employs the boundary layer approximation to describe the vapor flow under conditions including strong flow reversal and the method of matched asymptotic expansions to incorporate the n...

Detailed information about graft material characteristic is crucial to evaluate their clinical outcomes. The present study evaluates the physico-chemical characteristics of two xenografts manufactured on an industrial scale deproteinized at different temperatures (non-sintered and sintered) in accordance with a protocol previously used in sinus lift procedures. It compares how the physico-chemi...

In this study, porous titanium composites containing 5, 10 and 15 wt. % nanobioglass were fabricated by space holder sintering process. The pore morphology and phase constituents of the porous samples were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The mechanical properties were determined by compression test. The porosity of the sintered samples show...