Binder jet three-dimensional (3D) printing has been extensively developed since the early 1990s and is widely applied in various industrial fields. jetting 3D-printed products have anisotropic mechanical properties; however, no study provided a systematic explanation of this mechanism. Herein, we propose that crystal lattice model based on crystallographic logic can explain anisotropy fracture ...

In the present study, traditional and hybrid composites were prepared by Hand lay-up molding and investigated. The composites constituents were unsaturated polyester resin as the matrix, 3% and 6% volume fractions of carbon fibers as reinforcement and 3% of Al2O3, Al, Cement and local Gypsum (calcium sulfate anhydrate CaSO4) as filler particles. The investigated physical properties were density...

Amlodipine besilate, a calcium channel antagonist, exists in several solid forms. Processing of anhydrate and dihydrate forms of this drug may lead to solid state changes, and is therefore the focus of this study. Milling was performed for the anhydrate form, whereas the dihydrate form was subjected to quench cooling thereby creating an amorphous form of the drug from both starting materials. T...

Determination of the type of precipitated calcium sulfate in mixing two incompatible injection and formation waters was studied experimentally in this work at two temperatures of 26oC and 80oC. Here the SEM, EDX and XRD techniques have been used to inspect the temperature effects on the morphology, type, and size of the precipitated calcium sulfate crystals. The result...

this experiment was carried out on lily cut flowers in greenhouse conditions and at the agricultural faculty of guilan university. the statistical factorial experiment was performed in a completely randomized design of three replications. the main factors studied were cultivars navona (asiatic) and fangio (la) along with four levels of calcium sulfate (0, 2.5, 5 and 10 mm) in combination with t...

A batch recipe for the selective crystallization of the metastable anhydrate form of an enantiotropic pseudo-dimorph system, L-phenylalanine, in a mixed solvent system (75 wt % water and 25 wt % 2-propanol) was implemented by controlled tracking of a designed trajectory in the phase diagram. The solubility curves of both the anhydrate and monohydrate forms were determined using attenuated total...

transport of pathogenic bacteria has been recently considered a major source surface and subsurface water contaminations. soil could affect transport or filtering of bacteria depending on its physical and chemical properties. calcium carbonate and calcium sulfate are two important minerals of arid and semi-arid soils that their effect on bacteria transport has not been investigated, yet. in thi...