Bulk Mn 52 Al 46 C 2 in ? -phase was prepared by vacuum induction melting and used as precursor for the production bulk permanent magnets suction casting hot-extrusion. Part of alloy mechanically milled into a powder samples electron beam melting, hot-compaction high pressure torsion processes. The microstructure magnetic properties all were investigated correlated. It found that mechanical def...

Experiments were conducted for the study of evolution microstructure in a nanocrystalline CoCrFeNi multi-principal element alloy during annealing. The state was achieved by high-pressure torsion (HPT) which is well-defined severe plastic deformation technique. heat treatment performed differential scanning calorimeter (DSC). It found that thermogram contains two exothermic peaks with maxima at ...

The effect of high pressure thermal (HPT) processing on the inactivation of spores of proteolytic type B Clostridium botulinum TMW 2.357 in four differently composed low-acid foods (green peas with ham, steamed sole, vegetable soup, braised veal) was studied in an industrially feasible pressure range and temperatures between 100 and 120°C. Inactivation curves exhibited rapid inactivation during...

OBJECTIVE To evaluate the prevalence of chronic vascular complications and associated factors in patients with type 1 diabetes mellitus (DM). METHODS Cross sectional study with type 1 DM patients attending the Endocrine Division, Hospital de Clinicas de Porto Alegre. Patients were evaluated for presence of chronic vascular complications. RESULTS We evaluated 573 patients, mean age of 33 yea...

Background. Zinc alloys have advantages for use as biodegradable implantable orthopedic metal structures due to the absence of gas formation in comparison with magnesium alloys. But their mechanical properties are often has lower values. Aim. Investigation effect high-pressure torsion (HPT) on strength, ductility, corrosion resistance, antimicrobial properties, surface cell colonization and bio...

Two body centered cubic (bcc) metals, V and Mo, were processed by high pressure torsion (HPT) at ambient temperature. Hardness variation as well as microstructural evolution was examined with strain under a pressure of 2 to 6GPa. It was shown that the hardness increases with straining and saturates to a constant level with the grain size of 330–400 nm in V irrespective of the applied pressures....

The influence of shear strain on the microstructural, physical, and mechanical properties was studied large bulk samples (diameter: 30 mm, thickness: 1 or 8 mm), which were consolidated by high-pressure torsion (HPT) from a commercial powder DD0.7Fe3CoSb12. Particularly, thick sample (mass �53 g) allowed measuring thermoelectric (TE) with respect to various orientations specimen in sample. Al...

Cold-tolerant, neurotoxigenic, endospore forming Clostridium (C.) botulinum type E belongs to the non-proteolytic physiological C. botulinum group II, is primarily associated with aquatic environments, and presents a safety risk for seafood. High pressure thermal (HPT) processing exploiting the synergistic effect of pressure and temperature can be used to inactivate bacterial endospores. We inv...