Yazar "Mandal, Hasan" için listeleme
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a-SiAION ceramics densified with mixed oxide sintering additives
Mandal, Hasan; Oberacker, R. (2000)Densification and stabilization of ?-sialon ceramics were investigated by using oxides of large cations (Sr2+, La3+, Ce3+, Nd3+) and their equi-molar mixtures with CaO or Yb2O3. All multi-cation and single cation (only ... -
a-SİAION faz bölgesinin tespiti ve mikroyapısının karakterizasyonu
Kurama, Semra (Anadolu Üniversitesi, 2003)Bu tezde, tek ve çok katyonlu a-SiAION seramiklerinin faz ilişkileri, kararlılıkları ve mikroyapısal gelişimleri incelenmiştir. a-SiAION seramiklerinin mekanik ve kimyasal özelliklerinin kontrolünün dikkatli bir başlangıç ... -
alpha ->beta sialon transformation in calcium-containing alpha-SiAlON ceramics
Mandal, Hasan; Thompson, D. P. (Elsevier Sci LTD, 1999)Recent studies on rare earth densified a-sialon ceramics have shown that the resulting alpha-sialon product, present either as a single phase or in conjunction with beta-sialon, is unstable when heat treated at lower ... -
Aşınma direnci yüksek yer karosu sırlarının üretim imkanının araştırılması
Kara Kilerci, Damla (Anadolu Üniversitesi, 2002)Bu çalışmanın amacı, yüzey özelliklerini geliştirmek için fritlerden kristalleştirme (cam-seramik yöntemi) veya sırlara kristallerin ilavesi ile aşınmaya dayanıklı yer karosu sırları geliştirmektir. Bir diğer amaç, özellikle ... -
CeO2-doped ?-sialon ceramics
Mandal, Hasan; Thompson, D. P. (Springer Netherlands, 1996)[No abstract available] -
A comparative study of SiAlON ceramics
Mallik, Awadesh Kumar; Acikbas, Nurcan Çalış; Kara, Ferhat; Mandal, Hasan; Basu, Debabrata (Elsevier Sci LTD, 2012)Two different varieties of Si3N4 powders were used to prepare SiAlON ceramics. 100% beta-Si3N4 was used from refractory grade powders (B1) and another purer 98% alpha-Si3N4 (50A) powder was used to prepare the SiAlON ... -
Cytocompatibility property evaluation of gas pressure sintered SiAlON-SiC composites with L929 fibroblast cells and Saos-2 osteoblast-like cells
Kumar, Alok; Mallik, Awadesh Kumar; Açıkbaş, Nurcan Çalış; Yaygingol, Merve; Kara, Ferhat; Mandal, Hasan; Basu, Bikramjit (Elsevier Science BV, 2012)Although the oxide ceramics have widely been investigated for their biocompatibility, non-oxide ceramics, such as SiAlON and SiC are yet to be explored in detail. Lack of understanding of the biocompatibility restricts the ... -
Decolouration effect of WC addition on gas pressure sintered alpha-beta SiAlON ceramics
Ayas, Erhan; Kara, Alpagut; Mandal, Hasan; Turan, Servet; Kara, Ferhat (Elsevier Science BV, 2004)In this study, an attempt was made to mask an inhomogeneous gray colouration featured on the surfaces of the gas pressure sintered alpha-beta SiAlON ceramics containing 50% alpha and 50% beta SiAlONs in the form of spots. ... -
The design of compositions for multi-cation doped ?-ß SiAlON ceramics by the Rietveld method
Kurama, Semra; Herrmann, M.; Mandal, Hasan (2003)Although densification of ?-ß-SiAlON ceramics is easier by using sintering additives, it is difficult to achieve the designed composition and therefore the mechanical properties after sintering. This is mainly due to the ... -
The design of compositions for multi-cation doped alpha-beta SiAlON ceramics by the Rietveld method
Kurama, Semra; Herrmann, M; Mandal, Hasan (Trans Tech Publications LTD, 2003)Although densification of alpha-beta-SiAlON ceramics is easier by using sintering additives, it is difficult to achieve the designed composition and therefore the mechanical properties after sintering. This is mainly due ... -
Development of ?-ß SiAlON ceramics from different Si 3N4 starting powders
Açıkbaş, N. Çalış; Kara, Ferhat; Mandal, Hasan (2009)?-ß SiAlON ceramics were produced from different starting Si3N4 powders including P-Si3N4 and ?-Si3N4 powders and mixtures of these powders. Gas pressure sintering was used for sintering. After sintering, resultant fracture ... -
Development of alpha-beta SiAlON ceramics from different Si3N4 starting powders
Açıkbaş, N. Çalış; Kara, Ferhat; Mandal, Hasan (Trans Tech Publications LTD, 2009)alpha-beta SiAlON ceramics were produced from different starting Si3N4 powders including beta-Si3N4 and alpha-Si3N4 powders and mixtures of these powders. Gas pressure sintering was used for sintering. After sintering, ... -
Development of laminar type functionally graded SiAlON ceramics
Çalış, N; Kara, Alpagut; Kara, Ferhat; Mandal, Hasan (Trans Tech Publications LTD, 2004)In order to combine high hardness with high toughness, laminar type (two layers) functionally graded (FGM) SiAlON ceramics were developed. In a previous study achieved by the same authors, presence of a sharp transition ... -
Development strategies for sialon ceramics
SiAlON ceramics have a wide range of applications due to their favorable mechanical and thermal properties. They are one of the main groups of materials being considered for high temperature load bearing applications and ... -
Dizel partikül filtre (DPF) üretimine yönelik Si3N4 esaslı malzeme geliştirilmesi
Topateş, Gülsüm (Anadolu Üniversitesi, 2013)Dizel partikül filtrelerden artan beklentileri karşılayabilmek için yapılan çalışmalar; yeni malzeme arayışı ve filtre yapısının değiştirilmesi üzerine odaklanmaktadır. Yapılan tez çalışması ile ticari seramik dizel partikül ... -
The driving force for ??ß transformation in rare earth ? sialon ceramics
Mandal, Hasan; Thompson, D. P. (1997)In-situ ??ß sialon transformation in rare earth sialon systems, which occurs when dense ?- and ?/ß-sialon samples are heat-treated at temperatures in the range 1300-1600°C was first observed five years ago, and has generated ... -
The effect of different nucleation temperatures on the grain morphology of ?-SiAlON ceramics
Kuşhan, Seniz Reyhan; Mandal, Hasan (2003)Nitrogen rich yttrium-cerium containing multi-cation ?-SiAlON starting compositions were prepared by gas pressure sintering using conventional ?-Si3N4 powder. Microstructural characterization of the two stage sintered ... -
The effect of different nucleation temperatures on the grain morphology of alpha-SiAlON ceramics
Kuşhan, Seniz Reyhan; Mandal, Hasan (Trans Tech Publications LTD, 2003)Nitrogen rich yttrium-cerium containing multi-cation alpha-SiAlON starting compositions were prepared by gas pressure sintering using conventional alpha-Si3N4 powder. Microstructural characterization of the two stage ... -
Effect of different nucleation temperatures on the microstructural development of ?-SiAlON ceramics
Kuşhan, Seniz Reyhan; Mandal, Hasan (2004)?-SiAlON ceramics with elongated grains were previously observed in different studies. Sintering conditions are known to have a significant role on the microstructural development. By the nucleation treatment application ... -
Effect of different nucleation temperatures on the microstructural development of alpha-SiAlON ceramics
Kuşhan, Seniz Reyhan; Mandal, Hasan (Trans Tech Publications LTD, 2004)alpha-SiAlON ceramics with elongated grains were previously observed in different studies. Sintering conditions are known to have a significant role on the microstructural development. By the nucleation treatment application ...
