Publications

NIST Authors in Bold

Displaying 1 - 25 of 1277

Exploring the First High Entropy Thin Film Libraries: Composition spread-controlled Crystalline Structure

March 19, 2021

Author(s)

Thi X. Nguyen, Yen-Hsun Su, Jason Hattrick-Simpers, Takahiro Nagata, Howard Joress, Kao-Shuo Chang, Suchismita Sarker, Apurva Mehta, Jyh-Ming Ting

Thin films of two types of high-entropy oxides (HEOs) have been deposited on 76.2 mm Si wafers using combinatorial sputter deposition. In one type of the oxides

Shoulder fillet effects in strength distributions of MEMS components

November 6, 2020

Author(s)

Frank W. DelRio, Brad L. Boyce, Jake T. Benzing, Lawrence H. Friedman, Robert F. Cook

The failure forces and fracture strengths of polysilicon MEMS components in the form of stepped tensile bars with shoulder fillets were measured using a

Materials Research & Measurement Needs for Ceramics Additive Manufacturing

November 1, 2020

Author(s)

Andrew J. Allen, Igor Levin, Suzanne E. Witt

We report on a recent workshop dedicated to additive manufacturing (AM) of ceramics that was held at the National Institute of Standards and Technology (NIST)

Local negative permittivity and topological-phase transition in polar skyrmions

October 12, 2020

Author(s)

Sujit Das, Zijian Hong, Vladimir Stoica, Mauro A. Goncalves, Yu-Tsun Shao, Eric Parsonnet, Eric J. Marksz, Sahar Saremi, Margaret McCarter, A Reynoso, Christian J. Long, Aaron M. Hagerstrom, D Meyers, V Ravi, B Prasad, H Zhou, Z Zhang, H Wen, F Gomez-Ortiz, P Garcia-Fernandez, J Bokor, J Iniguez, J Freeland, Nathan D. Orloff, J Junquera, Long-Qing Chen, Sayeef Salahuddin, David A. Muller, L Martin, R. Ramesh

Topological solitons such as magnetic skyrmions have drawn enormous attention as stable quasi- particle-like objects. The recent discovery of polar vortices and

NIST Recommended Practice Guide: Fractography of Ceramics and Glasses, 3rd edition

September 15, 2020

Author(s)

George D. Quinn

Fractography is a powerful but underutilized tool for the analysis of fractured glasses and ceramics, for fractures in the laboratory and for component failures

Microscale Mapping of Structure and Stress in Barium Titanate

April 19, 2020

Author(s)

Jane A. Howell, Mark D. Vaudin, Lawrence H. Friedman, Robert F. Cook

Cross-correlation of electron backscatter diffraction (EBSD) patterns was used to generate rotation, strain, and stress maps of single-crystal tetragonal barium

Dynamic Compression Tests of Alumina Dumbbells Using a Spherical Joint

December 19, 2019

Author(s)

Richard Rhorer, George D. Quinn, Steven P. Mates

The dynamic compressive strength of ceramic armor materials is difficult to obtain experimentally due to the sensitivity of fracture strength to even small

Stress measurements in alumina by optical fluorescence: revisited

August 27, 2019

Author(s)

Robert F. Cook, Chris A. Michaels

Stress measurements in single crystal and polycrystalline alumina are revisited using a recently-developed optical fluorescence energy shift method. The method

DESIGN OF AN INTELLIGENT PYTHON CODE FOR VALIDATING CRACK GROWTH EXPONENT BY MONITORING A CRACK OF ZIG-ZAG SHAPE IN A CRACKED PIPE

July 27, 2019

Author(s)

Jeffrey T. Fong, Pedro V. Marcal, Robert B. Rainsberger, Nathanael A. Heckert, James J. Filliben

When a small crack is detected in a pressure vessel or piping, we can estimate the fatigue life of the vessel or piping by applying the classical law of

Disordered Heterogeneous Materials

July 1, 2019

Author(s)

Andrew J. Allen

This chapter describes the use of diffraction-based methods to characterize amorphous or disordered heterogeneous materials. Quantitative materials

An Inter-Laboratory Comparative High Throughput Experimental Materials Study of Zn-Sn-Ti-O Thin Films

March 19, 2019

Author(s)

Jason R. Hattrick-Simpers, Zachary T. Trautt, Kamal Choudhary, Aaron G. Kusne, Feng Yi, Martin L. Green, Sara Barron, Andriy Zakutayev, Nam Nguyen, Caleb Phillips, John Perkins, Ichiro Takeuchi, Apurva Mehta

High throughput experimental (HTE) techniques are an increasingly important way to accelerate the rate of materials research and development for many possible

Exposure Study on the Aging of PTFE and Ceramic Diffusers

February 6, 2019

Author(s)

Benjamin K. Tsai, Catherine C. Cooksey, David W. Allen, Christopher C. White, Walter E. Byrd, Deborah S. Jacobs

This paper describes efforts to quantify the effects of aging in the ultraviolet (UV) on polytetrafluoroethylene (PTFE) and ceramic samples. Long term UV aging

Uncertainty Quantification of Failure Probability and a Dynamic Risk Analysis of Decision Making for Maintenance of Ageing Infrastructure

January 2, 2019

Author(s)

Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Dennis D. Leber, Paul A. Berkman, Robert E. Chapman

Risk, as the product of failure probability and failure consequence, has been estimated and applied by engineers and managers to help make critical decisions on

UNCERTAINTY IN MULTI-SCALE CREEP RUPTURE LIFE MODELING AND A NEW APPROACH TO ESTIMATING FREQUENCY OF IN-SERVICE INSPECTION OF COMPONENTS AT ELEVATED TEMPERATURES (*)

April 3, 2018

Author(s)

Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben, Marvin J. Cohn

Uncertainty in modeling the creep rupture life of a full-scale component using experimental data at microscopic (Level 1), specimen (Level 2), and full-size

UNCERTAINTY IN MULTI-SCALE FATIGUE LIFE MODELING AND A NEW APPROACH TO ESTIMATING FREQUENCY OF IN-SERVICE INSPECTION OF AGING COMPONENTS

March 15, 2018

Author(s)

Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben, Stephen W. Freiman

Uncertainty in modeling the fatigue life of a full-scale component using experimental data at microscopic (Level 1), specimen (Level 2), and full-size (Level 3)

Experimental scattering matrix for lunar regolith simulant JSC-1A at visible wavelengths

March 8, 2018

Author(s)

Edward J. Garboczi, Ann C. Chiaramonti Debay, Thomas V. Lafarge, O Munoz, J Escobar-Cerezo, D Guirado, JC Gomez-Martin, Jay Goguen, F Moreno

We present the experimental scattering matrix as a function of the scattering angle of the lunar soil simulant JSC-1A. The measurements were performed at 488 nm

Electromechanical Properties and Charge Transport of Ca3TaGa3Si2O14 (CTGS) Single Crystals at Elevated Temperatures

February 21, 2018

Author(s)

Yuriy Suhak, Michal Schulz, Ward L. Johnson, Andrei Sotnikov, Hagen Schmidt, Holger Fritze

Structurally ordered piezoelectric Ca3TaGa3Si2O14 (CTGS) single crystals are studied. The elastic and piezoelectric constants are determined in the temperature

High-throughput first principles search for new ferroelectrics

January 31, 2018

Author(s)

Kevin F. Garrity

We use a combination of symmetry analysis and high-throughput density functional theory calculations to search for new ferroelectric materials. We use two

Inverse Transformation: Unleashing Heterogeneous Dynamics with an Alternative Approach to XPCS Data Analysis

January 31, 2018

Author(s)

Ross N. Andrews, Suresh Narayanan, Fan Zhang, Ivan Kuzmenko, Jan Ilavsky

X-ray photon correlation spectroscopy (XPCS), as an extension of dynamic light scattering (DLS) in the X-ray regime, detects temporal intensity fluctuations of

Correction of an adding-doubling inversion algorithm for the measurement of the optical parameters of turbid media

January 1, 2018

Author(s)

Paul Lemaillet, Catherine C. Cooksey, Jeeseong Hwang, Heidrun Wabnitz, Dirk Grosenick, Lin Yang, David W. Allen

We present broadband measurements of the optical properties of tissue-mimicking solid phantoms using a single integrating sphere to measure the hemispherical

Consumer Use Effects on Nanoparticle Release from Commercially Available Nanoceramic Cookware

December 7, 2017

Author(s)

Susana Addo Ntim, Samuel R. Norris, Keana C. Scott, Treye Thomas, Gregory Noonan

Food preparation and storage materials are often subjected to stressful conditions such as scraping and cleaning with abrasive pads throughout their lifecycle

Intrinsic conductivity, particle shape, and the Coulter particle counting method

September 4, 2017

Author(s)

Edward J. Garboczi

The Coulter particle counting method has been in use for more than five decades. It records a change in resistance when a particle flows from a large reservoir

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

Materials Design for Biomechanical Layer Structures

February 19, 2017

Author(s)

Brian R. Lawn, Antonia Pajares, P Miranda, Y N. Deng

A survey of recent advances in the analysis of ceramic-based layer structures for biomechanial applications is presented. Data on model layer systems

Thermodynamics and Phase Diagrams

February 19, 2017

Author(s)

Ursula R. Kattner

Thermodynamics is a field of physics and chemistry. It uses mathematics to describe changes in energy and entropy (disorder) of a material that is subject to

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