Mo-Si-B alloys were obtained by spark plasma sintering (SPS) using Mo-57Si-10B and Mo-52Si-15B alloy powders, and the effects of the B content and powder size on the isothermal and cyclic oxidation behaviours of the Mo-Si-B alloys at 1250 °C were investigated. A SiO2 phase was introduced during...

Nitric oxide (NO) mediates plant response to a variety of abiotic stresses; however, limited information is available on its effect on boron (B)-stressed watermelon plants. The present study investigates the mechanism through which NO protects watermelon seedlings from B deficiency and toxicity ...

Protective coating systems were applied to Mo–9Si–8B (at.%) alloys to prevent oxidation at elevated temperatures. The coatings produced by magnetron sputtering and subsequent annealing consisted of an outer oxidation protection layer and an interlayer between this and the substrate. Three amor...

To improve the oxidation resistance of carbon fibers, a series of carborane-containing polymer-based coatings were prepared. The oxidation resistance and microstructure of the coatings were investigated. According to XPS, FT-IR and XRD analysis, the high oxidation resistance of the polymer-based...

The oxidation behavior in air of three alloys from the Nb–Cr–Mo–Si–B system has been evaluated in the temperature range of 700–1400 °C. The alloy compositions in atomic percent are Nb-25Cr-15Mo-20Si-15B (2015), Nb-25Cr-15Mo-20Si-10B (2010), and Nb-25Cr-15Mo-15Si-15B (1515). Increased oxida...

Silica-based coating systems were developed using polymer derived ceramics (PDCs) technology. Ceramic composites on the base of a SiO2 and SiNO matrix and homogeneously distributed Mo5SiB2, SiB6, Si and B fillers were manufactured. The coating systems have low porosity and provide a high oxidati...

TaC ceramics with 0.03–0.60 wt% of boron additions were prepared by hot pressing at 2100 °C for 1 h under a pressure of 40 MPa. Effects of boron content on densification, phase composition, microstructure, mechanical properties and oxidation resistance of the TaC ceramics were investigated. Wh...

Procedures were developed for purification and processing of electrodeposited enriched boron powder for control rod application in India's first commercial Proto Type Fast Breeder Reactor (PFBR). Methodology for removal of anionic (F−, Cl−, BF4−) and cationic (Fe2+, Fe3+, Ni2+) impurities w...

High-temperature oxidation behavior of dense amorphous boron-rich Si2B1-4C2N monoliths in flowing air was studied in detail. The oxidation products are those of amorphous silica and cristobalite that control the diffusion of oxygen inward. Oxygen diffusion leads to a dense and passivating scale,...

Metal borides represent a class of materials with a large variety of crystal structures, yet their physical and catalytic properties are overwhelmingly understudied. In this review, we present the structural variations, relationships and properties of metal borides with a metal-to-boron ratio (M...

Mysids are important benthic-pelagic omnivores in many deep-lake food webs, yet quantitative data on their diet are limited. We explored the trophic role of Mysis diluviana in offshore Lake Ontario using samples collected in May, July, and September 2013 with a focus on seasonal and ontogenetic ...

As a result of frequent outbreaks occurring due to poor hygiene and improper sanitation of processing environments, there has been an increasing demand for the development of food-contact surface materials that intrinsically inhibit and reduce likelihood of potential microbial adherence and biof...

Novel near-infrared (NIR) reflecting pigments with colors ranging from yellow to orange to dark brown based on the rare earth molybdenum oxides RE6Mo2O15 (RE = Tb, Dy, Ho, Er) are described. The compounds were prepared by solid state reactions and characterized by XRD analysis and UV–Vis–NIR d...

As part of an attempt to identify the provenances and technology of pottery in Cypro-Geometric and Cypro-Archaic Bichrome styles at Tel Dor, Israel, the black and the red paint pigments and the ceramic body were analysed chemically by using a pXRF apparatus in a handheld configuration. This meth...

Pigments Checker is a collection of swatches of historical and modern pigments that offers art professionals, conservation scientists, conservators and fine art photographers, a tool to evaluate and test their imaging and spectroscopic methodologies for pigment identification. “Pigments Checker...

The shades of decorative coatings for façades are currently changing from white and pale to more chromatic ones. This also imposes a phase-out of heavy-metal pigments based on cadmium and lead, which cover the full range of yellow, orange, and red shades, and show excellent performance. The subs...

Natural pigments are alternatives to synthetic colorants with growing industrial interest for food and non-food uses (e.g. textiles). However, they are generally thermally labile and therefore their practical interest depends on the loss under typical processing conditions being acceptable. Peni...

The present work summarizes our experimental data on Surface-enhanced Raman scattering (SERS) of inorganic pigments. The effect of pigment type on Raman scattering enhancement was studied. The paper also describes the features of the SERS-active substrates used as well as the methods of sample p...

Novel non-toxic orange yellow inorganic pigments Al1−xFexPO4(x=0.00, 0.03, 0.05, 0.08) with high near-infrared reflectance (NIR) have been synthesized by a coprecipitation method. The structures of samples were investigated by XRD and Raman spectroscopy, and the reflective properties were tested...

A pale-yellow color nano pigment Bi4Ti3O12 (BTO) with impressive infrared (IR) reflectance (R = 95%) was synthesized using a simple hydrothermal method and characterized its crystalline nature, structural property, morphology and optical properties using X-ray diffraction technique (XRD), Raman ...