Upper Frequency Limits of Piezoceramic Resonators Arthur Ballato
U.S. Army Communications–Electronics Command, Fort Monmouth, N.J.
New piezoceramic materials currently under development promise low intrinsic
acoustic losses and high coupling factors that make them candidates for frequency
control and selection applications in the burgeoning telecommunications market. View
Article
Ceramic Materials for Electronic, Photonic Applications David W. Johnson Jr.
Stevens Institute of Technology, Hoboken, N.J.
The discovery of ferroelectric, piezoelectric and ferrimagnetic ceramics, optical
fibers, and multilayer ceramic processing has led to many and diverse applications
now used in many sophisticated electronic ceramics. View
Article
Multimode Underwater Transducers R.E. Newnham and D.C. Markley
The Materials Research Laboratory, The Pennsylvania State University, University
Park, Pa. R.J. Meyer Jr. and W.J. Hughes
The Applied Research Laboratory, The Pennsylvania State University, University
Park, Pa. A.-C. Hladky-Hennion
C.N.R.S., I.S.E.N, Lille CEDEX, France J.K. Cochran Jr.
Georgia Institute of Technology, Atlanta, Ga.
Miniature versions of high-power, low-frequency transducers are being optimized
to produce broadband transmit and receive responses, engineered vibration modes
and optimized acoustic beam patterns. View
Article
Spray Drying Dielectric Ceramics Qi Tan
CTS Communication Components Inc., Albuquerque, N.Mex.
Slurry specific gravity is an important variable in pressure-type and rotary-type
spray drying of dielectric ceramic powders. View
Article
Photo courtesy of CeramTec North America, Laurens, S.C.
Glass and the Government Jeffrey R. Gilbert
PPG Industries Inc., Pittsburgh, Pa.
Jobs in the glass-manufacturing industry are moving offshore. Reversal of this
situation requires cooperation between the industry and government. View
Article
Effect of Dispersants, Fine Powders on Aluminum-Containing Refractory
Castables A.R. Studart
Swiss Federal Institute of Technology (ETH), Zürich, Switzerland I.R. de Oliveira, M.D.M. Innocentini and V.C. Pandolfelli
Federal University of São Carlos, São Carlos, SP, Brazil
The effect of various dispersants and fine powders on the reaction of aluminum
powder with water in high-alumina refractory castables is addressed. View
Article
