Results 51 to 60 of about 507,192 (288)
Fabrication and microstructure of quartz ceramics with orderly–arranged carbon filler
Heliyon, 2018 Ceramics with tailored pore structure are showing potential applications in some special fields. For fabricating quartz ceramics with orderly–arranged carbon filler, a combination of 3D printing, vacuum suction filtration and sintering was explored to ...
Xiangming Li +6 more
doaj +1 more source
Strength optimization of reactive powder concrete
Revista IBRACON de Estruturas e Materiais, 2020 : Recent reports on reactive powder concrete address important aspects regarding its performance. Several techniques are used to improve the design of such concretes. Ultra-high compressive strengths have been reported with the application of pre-setting
Abrahão Bernardo Rohden +2 more
doaj +1 more source
Dissolution rate of powdered quartz in acid solution
GEOCHEMICAL JOURNAL, 1974 The study reported in this paper concerns the role of salts in dissolution of powdered quartz. Kinetic dissolution experiment was carried out in acid media at 60 and 90°C to know the mechanism of acid alteration of rocks. The dissolution rate of silicon was accelerated by addition of such salts as sodium chloride and sodium sulfate in solution above ...
Kamiya, Hiroshi +2 more
openaire +2 more sources
Selective Laser Sintering of a Stainless Steel Powder [PDF]
, 2003 The research presented in this thesis was part of a larger collaborated project (LastForm Programme) to research engineering solutions for the rapid manufacture of large scale (0.5m – 5.0m in length) low, medium and high temperature tooling (from room ...
Hauser, Carl
core +3 more sources
Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source
Preparation of nanocrystalline quartz via high energy ball milling
مجلة جامعة الزيتونة, 2021 The preparation of Nanocrystalline powder via high energy ball milling is drawing a considerable attention at the present time for its simplicity and relatively low cost.
Jihan Eldaour
doaj
Advanced Materials, EarlyView.The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti +8 more
wiley +1 more source
Advanced Materials, EarlyView.In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal +9 more
wiley +1 more source
The Quartz Crystal Microbalance as a Microviscometer for Improved Rehabilitation Therapy of Dysphagic Patients. [PDF]
, 2005 The viscosity of non-solid foods, and the stability of their viscosity over time, temperature change and shearing is critical in managing dysphagia.
Dewar, R. J., Joyce, Malcolm J.
core +3 more sources
Non-Structural Vibro-Compressed Concrete Incorporating Industrial Wastes
RecyclingThis study presents more eco-efficient concrete formulations for precast vibro-compressed masonry blocks. The proposed formulations incorporated industrial waste, glass powder (GP), and quartz powder (QP), in which natural aggregate was partially ...
Gabriela Bertazzi Pignotti +2 more
doaj +1 more source