Precipitates of the ordered L1(2) gamma' phase (dispersed in the face-centered cubic or FCC gamma matrix) were imaged in Rene 88 DT, a commercial multicomponent Ni-based superalloy, using energy-filtered transmission electron microscopy (EFTEM). Imaging was performed using the Cr, Co, Ni, Ti and Al elemental L-absorption edges in the energy loss spectrum. Manual and automated segmentation proce...

The present study evaluates the process activation energy or thermal diffusion (TDAE) to understand aging kinetics transformation kinetics. AA7075–5 Vol.% of SiCp composite were fabricated through stir casting technique. Differential scanning calorimetry (DSC) was carried out at different heating rates precipitation sequence and evaluate composite. Rockwell hardness tests investigated behavior ...

The junctional complex in the gill epithelium of the freshwater mussel (Elliptio complanatus) consists of an intermediary junction followed by a 2-3 micro long septate junction. Homologous and heterologous cell pairs are connected by this junction. After fixation with 1% OsO(4) containing 1% potassium pyroantimonate, electron microscopy of the gill reveals deposits of electron-opaque precipitat...

Evolution of plate-like precipitate of the W phase in an Al-1.9Cu-0.3Mg-0.2Ag (at.%) alloy has been investigated by three dimensional atom probe (3DAP) and transmission electron microscope (TEM) techniques. In an as-quenched alloy, all solute atoms are uniformly dissolved. After 5 s aging at 180¡C, coclusters of Ag and Mg atoms are present. Initially, these co-clusters do not have well defined ...

a mere turbiditj7 to a distinct precipitate. The degrees of albumosuria and albuminuria were not proportional to each other in all my cases. In a few cases there was a mere trace of albumose, while the quantity of albumen was large. What is called here albumose was characterized by the following tests :? (1) Not precipitated by heat. (2) Precipitated by HNoa. This precipitate is soluble on boil...

INTRODUCTION The purpose of this in vitro study was to determine whether para-chloroaniline (PCA) is formed through the reaction of mixing sodium hypochlorite (NaOCl) and chlorhexidine (CHX). METHODS Initially, commercially available samples of chlorhexidine acetate (CHXa) and PCA were analyzed with 1H nuclear magnetic resonance (NMR) spectroscopy. Two solutions, NaOCl and CHXa, were warmed t...

Nie and Muddle have a different opinion regarding the study by Li and Wawner about the observation of multiple cutting on the V phase and the explanation behind the observation. In their paper [1] one of the critics from Drs. Nie and Muddle is that the authors in [1] ignored the plate-like form and the effect of the aspect ratio for the strengthening. We agree that the shape of precipitate play...

The production of a precipitate by Serratia marcescens on Oxoid MacConkey agar has proven useful as a laboratory diagnostic test. This phenomenon is specific for Serratia within the Enterobacteriaceae, although precipitate production is also given by Acinetobacter anitratus and some Pseudomonas, Alcaligenes, and Aeromonas species. Precipitate production seems to be specific for certain batches ...