U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 276 - 300 of 2634

Blunt scratch strength of polycrystalline alumina

August 21, 2017
Author(s)
Robert F. Cook
A model for the fracture strength of brittle materials controlled by blunt (spherical) scratches is developed and compared with measurements on a polycrystalline alumina. The model is based on a residual stress-intensity factor for median cracks at

Fast-Responding Bio-Based Shape Memory Thermoplastic Polyurethanes

July 14, 2017
Author(s)
Zoran S. Petrovic, Jelena Milic, Fan Zhang, Jan Ilavsky
Fast response shape-memory polyurethanes were prepared from bio-based polyols, diphenyl methane diisocyanate and butane diol. The bio-based polyester polyols were synthesized from 9-hydroxynonanoic acid, a product obtained by ozonolysis of fatty acids

Diffusion of water in silica in the absence of stresses

April 21, 2017
Author(s)
Sheldon M. Wiederhorn
In this paper we consider the diffusion of water vapour into silica glass at relatively low temperatures, 25°C to ≈500°C. Extensive studies of such diffusion by others have shown that water diffusion from inert gases behaves differently than diffusion from

A Combinatorial Study of Metal Gate/HfO2-MOSCAPS

February 19, 2017
Author(s)
Martin L. Green, Kao-Shuo Chang, Ichiro Takeuchi, T Chikyow
Combinatorial methodology is a rapid technique for surveying new gate dielectrics and gate metal electrodes for the very complex advanced CMOS gate stack. Here, we report on a typical metal gate electrode alloy system, the Ni-Ti-Pt ternary. We have

A Re-Examination of a Specific Surface Area Research Material

February 19, 2017
Author(s)
Dennis B. Minor
Specific surface area(SSA) analysis is one of the most common, quick, and inexpensive techniques used in analytical laboratories to characterize a variety of solid materials using a variety of gases. The technique is not labor intensive, can yield results

Abrasive Machining of Glass-Infiltrated Alumina with Diamond Burs

February 19, 2017
Author(s)
L Yin, L K. Ives, S Jahanmir, E D. Rekow, E Romberg
The abrasive machining characteristics of a glass-infiltrated dry-pressed alumina used for fabrication of all-ceramic dental crowns are investigated using a high-speed dental handpiece and diamond burs containing supercoarse (180 m), fine (40 m), and

ACerS-NIST Phase Equilibria Diagrams Volume XIV Oxides

February 19, 2017
Author(s)
Robert S. Roth, Terrell A. Vanderah
This volume is the fourteenth of the topically-oriented series of phase diagram compilations and the tenth to appear since the National Institute of Standards (NIST) and the American Ceramic Society (ACerS) embarked on a jointly-sponsored expanded Ceramic

An Exception to Amontons' Law: The Friction of Carbon Surfaces in Air

February 19, 2017
Author(s)
P M. McGuiggan
The friction of carbon has been of much interest in recent years due to its good tribological properties. These properties include high wear resistance, high hardness, low friction coefficients, and low corrosion. 1 In computer hard disks, the magnetic
Displaying 276 - 300 of 2634
Was this page helpful?