It was shown that the intense increase of weight gain per unit surface area for sintered material with porosity of 22 % attributed to oxidation of the outer surface of the specimen and surfaces of pores in the bulk material.
For each condition, microstructure characterization, observation of the fracture surface of broken specimens and surface analysis were carried out respectively by Optical Microscope (OM), Scanning Electron Microscope (SEM) and 3D optical profilometer.
Specimen design and surface preparation, various modes of conducting the fatigue tests, specimen heating and imaging at elevated temperatures are considered.
Mass uptake, specimen geometry and surface concentration were measured independently.
The 3 other factors (material, specimen thickness, and surface) and all possible interactions among them were significant (P<.05).
This can result in decreasing the actual distance between the surface of the freshly excised BCS specimen and the surface of the tumor, as well as result in a change in the orientation of which surface of the freshly excised BCS specimen actually represents the true, closest margin.
The complex amplitude ratio between the mid-point of the specimen and the surface can be given by (3).
It has long been known that applying a negative potential to the sample reduces beam-landing energies and, thereby, reduces beam damage to the specimen and improves surface detail.
During the injection moulding process, serious adhesion effects can occur at the interface between the specimen and tool surface during ejection, causing distortions or cracks in the samples, especially for resins such as PMMA, PC and TPU.
The fatigue mechanisms were studied by SEM examination of polished surface of specimens and fracture surfaces.
