Sökning: "Saeid Esmaeilzadeh"

Hittade 4 avhandlingar innehållade orden Saeid Esmaeilzadeh.

  1. 1. Crystal chemistry of manganese tantalum oxides

    Författare :Saeid Esmaeilzadeh; Bernard Raveau; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; Oorganisk kemi; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : .... LÄS MER

  3. 2. Synthesis and Characterization of Nitrogen-rich Calcium α-Sialon Ceramics

    Författare :Yanbing Cai; Saeid Esmaeilzadeh; Zhijian Shen; Elis Carlström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nitrogen-rich; SiAlON; Sintering; Microstructure; Properties; Inorganic chemistry; Oorganisk kemi; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : In this thesis, a synthesis concept has been developed, which uses nitrogen-rich liquid phases for sintering of Ca-α-sialon ceramics. First, keeping the Si/Al ratios constant, the effects of N/O ratio on the properties and microstructure were investigated through a liquid phase sintering process. LÄS MER

  4. 3. Novel Route of Oxynitride Glass Synthesis and Characterisation of Glasses in the Ln-Si-O-N and Ln-Si-Al-O-N Systems

    Författare :Abbas Saeed Hakeem; Saeid Esmaeilzadeh; Jekabs Grins; Thommy Ekström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : The present work has been primarily focused on the glass forming region in the La-Si-O-N system, and attempts have been made to find glass forming regions by adopting a new synthesis route to produce glasses in oxynitride system. This goal can be attained by adding a network modifier in its metallic form instead of as an oxide. LÄS MER

  5. 4. Preparation, characterization and properties of nitrogen rich glasses in alkaline earth-Si-O-N systems

    Författare :Ali Sharafat; Saeid Esmaeilzadeh; Stuart Hampshire; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oxynitride glasses; glass forming region; nitrogen content; hardness; refractive index; Inorganic chemistry; Oorganisk kemi; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : Nitrogen rich glasses in the systems Ca-Si-O-N, Sr-Si-O-N and AE-Ca-Si-O-N (AE = Mg, Sr and Ba) have been prepared using a novel glass-synthesis route. The limits of the glass forming regions in the Ca and Sr systems and substitution limits in the AE-Ca-Si-O-N systems have been determined and physical properties of the glasses measured. LÄS MER