SiAlON microstructures
نویسندگان
چکیده
منابع مشابه
The Sialon Network
Data from 23 European countries show that the annual number of HIV diagnoses in men who have sex with men (MSM) increased by 86% between 2000 and 2006. This paper reports the main preliminary results of a bio-behavioural survey in MSM with a specific focus on HIV prevalence and use of United Nations General Assembly Special Session (UNGASS) indicators in six cities in Southern and Eastern Europ...
متن کاملRefractory α-SiAlON Containing La2O3
Refractory Y-α-SiAlON with elongated grain morphology was obtained by utilizing La2O3 as a densification aid, which resulted in excellent room-temperature and high-temperature strength. Room-temperature strength of 1000 MPa was achieved when La2O3 was augmented by adding Y2O3 or removing AlN. With only La2O3, a temperature-independent strength of 800–950 MPa was maintained up to 1100°C, then gr...
متن کاملMachinable α-SiAlON/BN Composites
Dense machinable α-SiAlON/BN composites were fabricated by hot-pressing using turbostratic boron nitride (tBN) obtained from nitridation of melamine diborate. The tBN was added to the starting powders, or introduced as a coating that formed in situ on α-Si3N4 carrier powders during nitridation, and was subsequently converted to hexagonal boron nitride (hBN) during hot pressing by solution repre...
متن کاملEffect of Seeding on the Microstructure and Mechanical Properties of alpha-SiAlON: II, Ca-alpha-SiAlON
Seeding effects on the microstructure and mechanical properties of single-phase Ca-α-SiAlON ceramics have been investigated. Whereas a small amount of seeds can transform the microstructure from one of fine equiaxed grains to one consisting of many needle-like grains, the highest fracture toughness of 8 MPa . m1/2 is not reached until 8% seeding. This contrasts with the much higher seed efficie...
متن کاملRedistribution of Aluminum Ions During Processing of Sialon Ceramics
J . Phys. Chem. Solids, 41 [6] 647-52 (1979). 24E. M. Logothetis and J. K. Park, “Charge Transport and Lattice Defects in COO,” Solid State Commun., 43 [7] 543-46 (1982). ”H:C Chen and T. 0. Mason, “Thermoelectric Study of Cobaltous Oxide Defect Structure,” J . Am. Ceram. Soc., 64 [lo] C-130-C-133 (1981). 2bJ. Nowatny, 1. Sikora, and M. Rekas, “Defect Structure and Electrical Properties of Undo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 2008
ISSN: 1882-0743,1348-6535
DOI: 10.2109/jcersj2.116.685