Abstraet--Quantitative analysis of clay minerals by X-ray powder diffraction requires oriented clays in order to increase detection limits of the analyses. This is achieved commonly either by smear or sedimentation techniques; however, these techniques can lead to poor analytical precision when used with an internal standard because they often produce non-homogeneous internal standard-clay mine...

The purpose of this study was to develop a compaction technique to enhance the solubility, dissolution rate and other physicochemical properties of poorly water-soluble drug indomethacin (IM) with different polymers. The IM was compacted with the different polymers like hydroxy propyl methylcellulose (HPMC), Kollicoat IR, Chitosan, Polyvinyl Pyrrolidone without using any binder and solvent. Pol...

Refractory oxide dispersion strengthened 13Cr-2Mo steel powder was successfully consolidated to near theoretical density using high voltage electric discharge compaction. Cylindrical samples with relative density from 90% to 97% and dimensions of 10 mm in diameter and 10-15 mm in height were obtained. Consolidation conditions such as pressure and voltage were varied in some ranges to determine ...

The exceptional potential of the graphene has not been yet fully translated into the Al matrix to achieve high-performance Al nanocomposite. This is due to some critical issues faced by graphene during its processing such as the dispersion uniformity, structure damage, compatibility/wettability, and low graphene embedding content in Al matrix. In the present work, a new integrative method was a...

Dry granulation using roll compaction is a typical unit operation for producing solid dosage forms in the pharmaceutical industry. Dry granulation is commonly used if the powder mixture is sensitive to heat and moisture and has poor flow properties. The output of roll compaction is compacted ribbons that exhibit different properties based on the adjusted process parameters. These ribbons are th...

A new material system that can produce very high green strength and green density has been developed for conventional compaction processing. The system, which uses a zincless lubricant, is based on the optimization of the bonding mechanism and binder chemistry. This approach permits the bonding of copper particles in a FC-0208 mix. Examples of the binder-treatment of FN-0208, Ancorstee145P, and...

It is known that work pieces with nanocrystalline structure condition have much higher performance than those with an ordinary structure. There are known number of techniques for manufacturing of nanocrystalline materials in powder condition however a question of manufacturing bulk pieces in the same nanocrystalline state mentioned is that compaction and synthesizing of nanocrystalline powders ...

Powder metallurgy is one way of producing complex, graded structures that could allow material systems to be produced with properties tailored individual applications. However, powder requires the semi-finished products are very similar final component. It much more economical produce simple and then combine them by forging simultaneous compaction than forming complex components desired structu...

The metal-organic framework MOF-5 has attracted significant attention due to its ability to store large quantities of H2 by mass, up to 10 wt.% absolute at 70 bar and 77 K. On the other hand, sinceMOF-5 is typically obtained as a bulk powder, it exhibits a lowvolumetric density andpoor thermal conductivitydboth ofwhichareundesirable characteristics for ahydrogen storage material. Here we explor...