In 2022,Chen, Sitan; Liu, Yanfang; Feng, Keqin published an article in Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science. The title of the article was 《Effects of Graphene Additions on Iron-Based Friction Material Prepared From Vanadium-Bearing Titanomagnetite Concentrates Directly》.HPLC of Formula: 6381-59-5 The author mentioned the following in the article:
The iron-based friction material was prepared directly from vanadium-bearing titanomagnetite concentrates by in situ selective carbothermal reactions and vacuum sintering. In this study, drawing on the extraordinary properties of graphene, experiments were conducted to evaluate the effects of graphene additives with a range of 0.2 to 1.0 wt pct on the microstructure and properties of iron-based materials sintered at 1050°C for 3 h. The graphene was added in the form of copper-coated graphene to solve the weak bonding between matrix and graphene. The results show that the microstructure and properties of iron-based friction materials with graphene are significantly improved, especially the iron-based material containing 0.8 wt pct graphene. The graphene reduces the lamellar spacing of pearlite and contributes a more uniform growth of the grain due to its considerable high thermal conductivity In addition, graphene could also facilitate the austenite transformation to refine the grain. As a result, with the increasing of the graphene content, the hardness is enhanced while the wear rate and friction coefficient are decreased. Particularly, the oxide films on the worn surface are accumulated and transform from FeO to Fe3O4 and Fe2O3, together with the improved wear resistance, leading the wear behavior turns from severe abrasive and adhesive wear to mild abrasive wear. However, when the graphene content reaches to 1.0 wt pct, both the microstructure and tribol. properties of the materials deteriorate again due to the aggregation of graphene. The experimental process involved the reaction of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5HPLC of Formula: 6381-59-5)
Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. HPLC of Formula: 6381-59-5 Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.
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