VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Cost-effective synthesis and hot pressing of ▫$AlMgB_12-xTiB_2$▫ composites
    Kevorkijan, Varužan
    As an alternative to mechanical alloying, high temperature synthesis of ultra hard superabrasive AlMGB14 was performed under normal pressure. The reaction mixture consisted of elemental aluminium and ... boron, whereas magnesium was added in the form of a Mg-precursor which liberates elemental magnesium app. 400°C above the melting point of magnesium, in this way reducing its evaporation during heating-up. 95 wt % conversion to AlMgB14 and 5 wt % to MgAl2O4 was achieved. The synthesized AlMgB14 baseline powder, as well as mixtures of AlMgB14 consisting of 30, 50 and 70 wt% of TiB2 were hot pressed to near theoretical density. The various samples produced were characterized for microstructure and hardness. A micro-hardness of 29.4GPa in hot pressed AlMgB14 and a maximum micro-hardness of 31.2GPa in hot pressed samples of AlMgB14 reinforced with 70 wt% of TiB2 was achieved. Future project milestones necessary for achieving a higher AlMgB14 reaction yield and reducing the MgAl2O4 content, as well as producing sinter-active AlMgB14 powder are also presented.
    Vir: Aluminium. - ISSN 0002-6689 (Jg. 82, 6, 2006, str. 554-558)
    Vrsta gradiva - članek, sestavni del
    Leto - 2006
    Jezik - angleški
    COBISS.SI-ID - 10463510

vir: Aluminium. - ISSN 0002-6689 (Jg. 82, 6, 2006, str. 554-558)
loading ...
loading ...
loading ...

Vnos na polico