We observe that ultrathin Fe/Cu(3)Au(001) films in the 6-13 A thickness range, beyond the thickness of pseudomorphism breakdown at room temperature, exhibit a temperature dependent structural phase transition in the range T(c) approximately 345-380 K. In the high temperature state the Fe film becomes pseudomorphic, while breakdown of pseudomorphism reversibly occurs as the system is cooled belo...

Pseudomorphism is known as a suitable technique for producing mesoscale pore in silica powders keeping their original morphologies. Herein, silica discs with several millimeter dimensions have been prepared using the same method. This method has been utilized through application of pseudomorphism reaction of preshaped bodies by immersion in a solution containing surfactant and swelling re...

The size and lattice constant evolution of Pb nanoparticles (NPs) synthesized by high fluence implantation in crystalline Si have been studied with a variety of experimental techniques. Results obtained from small-angle x-ray scattering showed that the Pb NPs grow with increasing implantation fluence and annealing duration. The theory of NP growth kinetics can be applied to qualitatively explai...

Replacement reactions ('pseudomorphism') commonly occur in Nature under a large range of conditions (T 25 to >600 degrees C; P 1 to >5 kbar). Whilst mineral replacement reactions are often assumed to proceed by solid-state diffusion of the metal ions through the mineral, many actually proceed via a coupled dissolution and reprecipitation (CDR) mechanism. In such cases, a starting mineral is dis...

Abstract The Flinton Group is a metasedimentary succession of the Grenville Province in SE Ontario, potentially allowing insight into tectono‐thermal evolution continental crust during Mesoproterozoic. At its Green Bay locality, metapelites staurolite zone contain abundant, post‐kinematic garnet porphyroblasts. Whereas larger crystals are typically impinged, smaller isolated from each other, oc...

The heterogeneous parallel processing community has long been struggling to bring its approach to computation into the mainstream. One major impediment is that no popular programming language supports a sufficiently wide range of models of parallelism. The recent emergence of Java as a popular programming language may offer an opportunity to change this situation. This article begins with a rev...