Search results

It is clearly noted from image that cubic grains of different sizes from sub-micron to a few micron(marked as 1 and 2 in Fig. 3) are belong to Bi25FeO40 as an impurity phase.
Microstructural studies proved that the variation of grain morphologies may be an evidence of the formation of impurity phases.
Acknowledgment The financial supports of this work by the University of Tehran (Contract number: 8107004/1/01) and Iran Nanotechnology Initiative Council are gratefully acknowledged.

A number of the investigations were administered on an effort basis to realize optimum bonding conditions.
The microphotography on 304L SS after welding, its heat-affected zone structure is elongated grain is found as shown in Fig. 5 (a).
· The macro and microstructure examinations on 304L SS after welding, its heat-affected zone structure is found elongated grains, least amount of δ-ferrite and also the high amount of austenite is found in the weld zone is well matched with the base metal structure.

A large number of island texture appeared at Mg base side.
The strength of the joints are controlled by the composition, grain size and properties of the phases formed during the bonding process.
The increasing amount and grain size of IMCs at the interface with the extended holding time lead to the increasing microhardness values of the layers in the interfacial zone.

The wear behaviour of these alloys depend upon number of mechanical properties, microstructure in addition to the service conditions such as load, sliding speed, temperature, environment and counter surface [3].
Maximum addition of 0.7% Mg to A356 alloy results in conversion of unmodified acicular silicon to lamellar, a partially rounded and even a fibrous structure while, the a-Al grains remain dendrites.
Gruzleski, Grain refinement mechanisms of hypoeutectic Al-Si alloys, Acta Mater. 44(9) (1996), 3749-3760

On-site compaction Random check is done according to the detection frequency, calculating the compactness of each measurement point Ki The sand replacement method or cutting ring method can be used in field compaction degree examination of fine-grained soil; sand replacement method, water bag method or drilling sampling wax seal method can be used in coarse grained soil compaction check.
Hierarchical compactness of all the points should meet the requirements when the construction segment is short, and the number of samples should not be less than six.

., [13] which reported an increase in the glucose yield with the temperature for the hydrolysis of distiller grains.
Acknowledgement The authors acknowledge the research grant provided by Universiti Malaysia Perlis under the Fundamental Research Grant Scheme (FRGS), a grant number of FRGS/1/2015/TK02/UNIMAP/02/2 from the Ministry of Higher Education Malaysia that resulted in this article.
Optimizing dilute acid hydrolysis (DACH) of distiller grains and ethanol fermentation.

In order to manufacture a thin film with outstanding properties, high purity, even grain size and high-density target material properties are required [3].
A number of recent studies have attempted to manufacture thermal-sensitive, brittle metal powder materials such as WC-Co and amorphous materials using the warm spray process [6].
Yapi, Effect of substrate temperature and source grain size on the structural and electrical properties of CSVT grown Cu(In1-xGax)Se2 thin films, Mater.

It is known from previous studies that there are a large number of searches using the wet synthesis method to obtain calcium phosphate nanostructured powders.
These new features may contribute to biocements and biomaterials obtaining, with interconnected microporous nanostructures and microstructures, in which grain morphology and micropores favors wettability and capillary action.
The biphasic bioceramics are developed with interest of improving the grain morphology, microporosity, bioactivity and mechanical properties, which are not always achieved in bioceramics.

The microstructure of the sintered rod of nicrosil is a single-phase solution with a grain size of 8 to 40 µm, and a single-phase solution with a grain size of 6 to 15 µm of the nisil rod.
The number of pores on microsections of sintered rods Pore size Up to 50 µm From 50 to 75 µm From 75 to 100 µm Over 100 µm Nicrosil 86 1 3 0 Nisil 102 5 2 1 In the study of specific differential thermal EMF (αe) of thermocouple welded from sintered rods, it was found that in the temperature range from 0 to 100 oC value calculated from the experimental data coincides with the theoretical value (αt) which was estimated according to GOST R 8.585-2001 and is: αe = αt =0.027 mV/K.

Introduction In consideration of pyrotechnic composed by oxidant, combustible agent and adhesive is a self-contained oxygen system as oxidant providing oxygen required for combustion[1], it can produce a large number of high temperature gases and solid residues which have a certain sound effect through underwater continual and steady combustion.
Pyrotechnic which is composed by oxidant, combustible agent and adhesive is compressed into grains of which density is 1.8 g/cm3, diameter is 18 mm , weight is 5 g installed in the spray cavity and placed together with the resonant cavity which is located on the same axis with pyrotechnic charge nozzle.
Fig. 1 The diagram of test sample, including grain, spray and resonant cavity Experimental platform.