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Topic Area: Materials Science

Displaying records 11 to 20 of 526 records.
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11. Synchrotron-Based Measurement of the Impact of Thermal Cycling on the Evolution of Stresses in Cu Through-Silicon Via
Topic: Materials Science
Published: 6/30/2014
Authors: Chukwudi Azubuike Okoro, Lyle E Levine, Ruqing Xu, Klaus Hummler, Yaw S Obeng
Abstract: One of the main causes of failure during the lifetime of microelectronics devices is their exposure to fluctuating temperatures. In this work, synchrotron-based X-ray micro-diffraction is used to study the evolution of stresses in copper through-sili ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915982

12. Multi-method analysis of multiwall carbon nanotube polymer nanocomposite samples after photodegradation
Topic: Materials Science
Published: 6/16/2014
Authors: Elijah J Petersen, Thomas Fung Lam, Justin M Gorham, Keana C K Scott, Christian John Long, Renu Sharma, Li Piin Sung, James Alexander Liddle, Tinh Nguyen
Abstract: Nanomaterials can be used as nanofillers to enhance the properties of polymeric materials. However, the effect of weathering on nanocomposites and the potential for nanomaterial release is not yet well understood. Multiple analytical methods are ne ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915812

13. Defect and Microstructural Evolution in Thermally Cycled Cu Through-Silicon Vias
Topic: Materials Science
Published: 6/14/2014
Authors: Chukwudi Azubuike Okoro, James Marro, Yaw S Obeng, Kathleen Richardson
Abstract: In this study, the effect of thermal cycling on defect generation, microstructure, and the RF signal integrity of blind Cu through-silicon via (TSV) were investigated. Three different thermal cycling profiles were used; each differentiated by their ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915535

14. Quantifying Crystallinity in High Molar Mass Poly(3-hexylthiophene)
Topic: Materials Science
Published: 6/3/2014
Authors: Chad R Snyder, Ryan C Nieuwendaal, Dean M DeLongchamp, Christine K Luscombe, Prakash Sista, Shane D Boyd
Abstract: We extend a recent comprehensive study of 3-hexylthiophene oligomers to high molar mass poly(3-hexylthiophene) (P3HT) fractions, such as those used in organic photovoltaic devices. Through a combination of differential scanning calorimetry (DSC) and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915163

15. Control Fusion for Safe Multi-robot Coordination
Topic: Materials Science
Published: 5/9/2014
Authors: Roger V Bostelman, Jeremy A Marvel
Abstract: Future smart manufacturing systems will include more complex coordination of mobile manipulators (e.g., robot arms mounted on mobile bases). The National Institute of Standards and Technology, Performance of Collaborative Robot Systems Project has b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915915

16. Measuring Organelle Shape in 3D in Stem Cells Cultured on Nanofiber Scaffolds
Topic: Materials Science
Published: 4/19/2014
Authors: Carl George Simon Jr, Peter Bajcsy, Wojtek J Tutak, Jyotsnendu (Jyotsnendu) Giri
Abstract: Previous work has demonstrated that culture of osteoprogenitor cells on nanofiber scaffolds can potentiate osteogenic differentiation [1-4]. Culture of cells in nanofiber scaffolds causes changes to cell morphology, suggesting that morphological ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914995

17. Preparation of nanocomposite plasmonic films made from cellulose nanocrystals or mesoporous silica decorated with unidirectionally aligned gold nanorods
Topic: Materials Science
Published: 4/11/2014
Authors: Michael Campbell, Qingkun Liu, Aric Warner Sanders, Julian Evans, Ivan I. Smalyukh
Abstract: Using liquid crystalline self-assembly of cellulose nanocrystals, we achieve long-range alignment of anisotropic metal nanoparticles in colloidal nanocrystal dispersions that are then used to deposit thin structured films with ordering features h ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915636

18. Recent Advances in Focused Ion Beam Technology and Applications
Topic: Materials Science
Published: 4/11/2014
Authors: Nabil Bassim, Keana C K Scott, Lucille A Giannuzzi
Abstract: Focused ion beam (FIB) microscopes are extremely versatile and powerful instruments for materials research. These microscopes, when coupled in a system with a scanning electron microscope (SEM), offer the opportunity for novel sample imaging, secti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915390

19. Measuring Stem Cell Dimensionality in Tissue Scaffolds
Topic: Materials Science
Published: 4/1/2014
Authors: Carl George Simon Jr, Sapun Parekh, Christopher K. Tison, Girish Kumar, Tanya M. Farooque, Charles H Camp
Abstract: Many 3D scaffold systems have evolved for tissue engineering, drug screening and in vitro tissue models. However, it is not clear which scaffolds provide a 3D cell niche and there is no clear way to measure cell niche dimensionality. Advances in 3D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913148

20. EVALUATING THERMAL DAMAGE RESISTANCE OF GRAPHENE/CARBON NANOTUBE HYBRID COMPOSITE COATINGS
Topic: Materials Science
Published: 3/7/2014
Authors: Lamuel David, Ari D Feldman, Elisabeth Mansfield, John H Lehman, Gurpreet Singh
Abstract: Carbon nanotubes and graphene are known to exhibit some exceptional thermal (K~2000 to 4400 W.m-1K-1at 300K) and optical properties. Here, we demonstrate preparation and testing of multiwalled carbon nanotubes and chemically modified graphene-composi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914912



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