Graphene-based three-dimensional porous macrostructures are believed of great importance in various applications, e.g. supercapacitors, photovoltaic cells, sensors and high-efficiency sorbents. However, to precisely control the microstructures and properties of this material to meet different application requirements in industrial practice remains challenging. We herein propose a facile and hig...

This is a review article covering literature reported on consolidation of ceramic components out of aq.-based Al2O3, MgAl2O4 spinel, β-Si4Al2O2N6, β-SiAlON-SiO2 composite, and zirconia toughened alumina (ZTA) slurries following hydrolysis induced aq. gelcasting (henceforth referred to as GCHAS) route. GCHAS is a combination of aq. gelcasting (GC) and hydrolysis assisted solidification (HAS) rou...

UNLABELLED A simple, low-cost, versatile, and potentially scalable casting method is proposed for the fabrication of micro- and nano-thin films, herein termed as ultrasonic "substrate vibration-assisted drop casting" (SVADC). The impingement of a solution drop onto a substrate in a simple process called drop casting, usually results in spreading of the liquid solution and the formation of a non...

The Selective Laser Sintering Process of thermoplastics (SLS) enables the manufacturing of components with complex shape in a short time period without the manufacturing of a specific mold. However, this manufacturing process is limited by the restricted range of materials. In contrast to this primary shaping process, vacuum casting allows a quick, inexpensive and highly accurate process but it...

To date, very little information exists on recovery methods for freeze-injured cells and the effect of blastor conventional-chilling for reducing specific pathogens associated with pork surfaces. To address these issues, two separate studies were conducted to determine 1) an effective recovery method for freeze-injured Listeria monocytogenes, Salmonella Typhimurium and Campylobacter coli associ...

The dehydration tests were conducted at three drying methods to evaluate the drying curves and the energy uptake. Apple (Malus domestica L.) cubes were dried under different processing conditions applying freeze drying (FD), freeze drying assisted by hot air and freeze drying assisted by infrared radiation. Control samples were produced using regular freeze drying without the pre-drying. Hot ai...

The vacuum oven-drying method (60#{176}C) was compared with the freeze-drying method. By the former method, 72.85 ± 0.0374 (SD) % moisturewas removed, by thelatter, 81.04 ± 0.050%.The feces were from the same source. With the freeze-drying method total moisture removed is clearly greater, and the time required was only 16 h, as compared with 48 h required by the vacuum oven-drying method. There...

Directional freeze-casting (FC) of powder suspensions followed by freeze-drying and sintering is a versatile scalable processing route for creating metallic foams with highly elongated pores. Because the high propensity oxidation metal powders, use precursor oxide powders studied here an additional step H2-reduction oxides to before sintering. However, large volume shrinkage due reduction cause...

Freeze etching of solute model systems (e.g., glycerol or ferritin solutions) demonstrates that cryofixation can introduce serious artifacts due to the segregation of the dissolved or dispersed material from the solvent. Since, in principle, this problem can be reduced by increasing the cooling rate, a new technique has been developed which combines spray freezing with freeze etching. This spra...