In this study, we report a procedure for producing syntactic steel foams by melt infiltration of millimeter-sized ceramic microspheres. The gravity-fed infiltration method yields steel foam with uniform distributions of microspheres and negligible unintended porosity. The critical parameters in the manufacturing process are the melt temperature and the preheat temperature of the microspheres pr...

In this work, the use of foam-like glass-ceramic scaffolds as trabecular coatings on ceramic prosthetic devices to enhance implant osteointegration is proposed. The feasibility of this innovative device was explored in a simplified, flat geometry: glass-ceramic scaffolds, prepared by polymeric sponge replication and mimicking the trabecular architecture of cancellous bone, were joined to alumin...

The J-based fracture testing technique is newly extended to experimentally determine the tension-softening (a-6) relations in ceramic-matrix composites. The J-based technique originally proposed for concrete has been well established for quasi-brittle materials where the fracture process is primarily dominated by the formation of a fracture process zone and the contribution of the crack tip tou...

Ceramic hydroxyapatite foam (CF-HAP) was prepared by combining slip-casting and foaming methods. The CF-HAP characterized scanning electron microscopy (SEM), physisorption of N2, Fourier transforms infrared spectroscopy (FTIR), X-ray diffraction (XRD). results the specific surface area SEM analyses revealed that used shaping method provides with a wide range porosity including macro mesopores. ...

Oscillators operating in field applications are subject to much more strenuous environmental effects than those in the laboratory. These environmental effects, such as vibration and temperature fluctuation, have a great impact on the performance of the oscillators; however, many applications require this laboratory-level performance in situ. Opto-electronic oscillators (OEOs) have emerged in re...

Lately, ceramic fuel cells (CFCs) have held exceptional promise for joint small- and large-scale applications. However, the low-oxygen reduction response of cathode materials has hindered low operating temperature CFCs. Herein, we developed a semiconductor based on La Ce co-doped SrCoO3 embedded them in porous Ni-foam to study their electrochemical properties. The Ni-foam-pasted La0.2Sr0.8Co0.8...