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Bioscience

Biomaterials

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Displaying 476 - 500 of 3439

Enviromental Concerns Facing the Ceramics Industry

February 19, 2017
Author(s)
Stephen W. Freiman
Over the past few years, there has been increased attention paid by ceramic manufacturers in the United States to environmental issues facing their businesses. In a recent survey of its members, the environment was identified as the primary issue facing

Experts Evaluate Pulsed Laser Deposition Technology

February 19, 2017
Author(s)
John W. Hastie, D W. Bonnell, D Chrissey
The National Institute of Standards and Technology (NIST, Gaithersburg, MD) and The Naval Research Laboratory (NRL, Washington, DC) jointly hosted a workshop entitled Pulsed Laser Deposition (PLD) Technological Barriers: Research Needs and Opportunities

First-Principles Effective Hamiltonians for PbZrO 3

February 19, 2017
Author(s)
Eric J. Cockayne
The phase transformation behavior and physical properties of the technologically important PbZr 1-xTi xO 3 (PZT) solid solution series are of great interest. For example, the large piezoelectric response of PZT (x = 0.45) makes this compound suitable for

Glass forming liquids and polymers: what we learn from statistical physics

February 19, 2017
Author(s)
S C. Glotzer, Y Gebremichael, N Lacevic, T B. Schroder, Francis W. Starr
We describe the application of statistical mechanical framework, originally developed to describe critical phenonema, to the problem of dynamic criticality associated with the glass transition of various materials.

Gravitational Effects on Mercuric Iodide Crystal Growth

February 19, 2017
Author(s)
B W. Steiner, L van den Berg, U Laor
Gravity can affect the physical vapor growth of mercuric iodide in two distinct ways. First, gravity will induce convection during growth, which strongly mixes residual impurities and any elementary gases resulting from imperfect stoichiometry, either of

Green Body Density Measurement Techniques

February 19, 2017
Author(s)
P Pei, J Anderson, M C. Bhardwaj, Dennis B. Minor, T Thornton
Green body density measurement techniques were investigated and compared. The measurement techniques investigated include mass-volume measurement, mercury pycnometry, powderdisplacement pycnometry, and noncontact ultrasonic method. Samples studied include

Habits of Grains in Dense Polycrystalline Solids

February 19, 2017
Author(s)
D M. Saylor, B S. El-Dasher, Y Pang, H M. Miller, P Wynblatt, Anthony D. Rollett, G S. Rohrer
Three-dimensional interfacial networks in polycrystalline solids are topologically and crystallographically complex. With a few notable exceptions, most of what we know about the distribution of three-dimensional grain shapes has been derived from foams or
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