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Bacterial Cellulose Ionogels as Chemosensory Supports (2017)

Smith, Chip J. ; Wagle, Durgesh V. ; O’Neill, Hugh M. ; [weitere]

American Chemical Society

In: ACS Applied Materials & Interfaces. 2017; 9(43): 38042-38051. Published 2017 Oct 23. doi: 10.1021/acsami.7b12543.

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Publikationsdatum: 2017-10-23

Print ISSN: 1944-8244

Digitale ISSN: 1944-8252

Thema: Chemie und Pharmazie , Maschinenbau

Publiziert von American Chemical Society

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Digitale Medien

Composite Polymer Electrolytes Using Fumed Silica Fillers: Rheology and Ionic Conductivity (1994)

Khan, Saad A. ; Baker, Gregory L. ; Colson, Sandrine

s.l. : American Chemical Society

Chemistry of materials 6 (1994), S. 2359-2363

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ISSN: 1520-5002

Quelle: ACS Legacy Archives

Thema: Chemie und Pharmazie , Maschinenbau

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1021/cm00048a023

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3

Digitale Medien

Synthesis and crystal, molecular, and electronic structure of the organosulfur .pi.-electron-donor 2-(thiopyran-4'-ylidene)-1,3-dithiole (1989)

Sandman, Daniel J. ; Ceasar, Gerald P. ; Fisher, Almon P. ; [weitere]

s.l. : American Chemical Society

Chemistry of materials 1 (1989), S. 421-427

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ISSN: 1520-5002

Quelle: ACS Legacy Archives

Thema: Chemie und Pharmazie , Maschinenbau

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1021/cm00004a008

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Digitale Medien

Characterization of carbon microfibers as reinforcement for epoxy resins (1993)

Yin, M. ; Koutsky, J. A. ; Barr, T. L. ; [weitere]

s.l. : American Chemical Society

Chemistry of materials 5 (1993), S. 1024-1031

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ISSN: 1520-5002

Quelle: ACS Legacy Archives

Thema: Chemie und Pharmazie , Maschinenbau

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1021/cm00031a025

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Cell-mediated fibre recruitment drives extracellular matrix mechanosensing in engineered fibrillar microenvironments (2015)

Brendon M. Baker; Britta Trappmann; William Y. Wang; Mahmut S. Sakar; Iris L. Kim; Vivek B. Shenoy; Jason A. Burdick; Christopher S. Chen

Springer Nature

In: Nature Materials

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Publikationsdatum: 2015-11-21

Beschreibung: Nature Materials 14, 1262 (2015). doi:10.1038/nmat4444 Authors: Brendon M. Baker, Britta Trappmann, William Y. Wang, Mahmut S. Sakar, Iris L. Kim, Vivek B. Shenoy, Jason A. Burdick & Christopher S. Chen

Print ISSN: 1476-1122

Digitale ISSN: 1476-4660

Thema: Chemie und Pharmazie , Maschinenbau , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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Tuning hardness in calcite by incorporation of amino acids (2016)

Yi-Yeoun Kim; Joseph D. Carloni; Beatrice Demarchi; David Sparks; David G. Reid; Miki E. Kunitake; Chiu C. Tang; Melinda J. Duer; Colin L. Freeman; Boaz Pokroy; Kirsty Penkman; John H. Harding; Lara A. Estroff; Shefford P. Baker; Fiona C. Meldrum

Springer Nature

In: Nature Materials

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Publikationsdatum: 2016-07-23

Beschreibung: Nature Materials 15, 903 (2016). doi:10.1038/nmat4631 Authors: Yi-Yeoun Kim, Joseph D. Carloni, Beatrice Demarchi, David Sparks, David G. Reid, Miki E. Kunitake, Chiu C. Tang, Melinda J. Duer, Colin L. Freeman, Boaz Pokroy, Kirsty Penkman, John H. Harding, Lara A. Estroff, Shefford P. Baker & Fiona C. Meldrum

Print ISSN: 1476-1122

Digitale ISSN: 1476-4660

Thema: Chemie und Pharmazie , Maschinenbau , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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Electrical Resistance of SiC Fiber Reinforced SiC/Si Matrix Composites at Room Temperature during Tensile Testing (2013)

Gregory N. Morscher, Christopher Baker, Craig Smith

Wiley

In: International Journal of Applied Ceramic Technology

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Publikationsdatum: 2013-09-19

Beschreibung: The implementation of Ceramic Matrix Composites necessitates the understanding of stress-dependent damage evolution. Toward this goal, two liquid silicon infiltrated SiCf reinforced SiC composites were tensile tested with electrical resistance (ER) monitoring as well as acoustic emission to quantify matrix cracking. ER was modeled using a combination of resistors in series and parallel to model transverse matrix cracks and fiber/matrix segments between matrix cracks. It is shown that resistance change is sensitive to transverse matrix crack formation and stress-dependent debonding length. The model appears to be accurate up to the stress for matrix crack saturation.

Print ISSN: 1546-542X

Digitale ISSN: 1744-7402

Thema: Maschinenbau

Publiziert von Wiley

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Structural and Dielectric Properties in (1−x)BaTiO3–xBi(Mg1/2Ti1/2)O3 Ceramics (0.1 ≤ x ≤ 0.5) and Potential for High-Voltage Multilayer Capacitors (2013)

Doo Hyun Choi, Amanda Baker, Michael Lanagan, Susan Trolier-Mc; Kinstry, Clive Randall

Wiley

In: Journal of the American Ceramic Society

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Publikationsdatum: 2013-04-11

Beschreibung: Structural and dielectric properties of (1− x ) BaTiO 3 – x Bi ( Mg 1/2 Ti 1/2 ) O 3 ( x = 0.1–0.5) were investigated to understand the binary system and utilize it for high-voltage, high energy density capacitors. The solubility limit for Bi ( Mg 1/2 Ti 1/2 ) O 3 in a BaTiO 3 perovskite was between x = 0.4 and x = 0.5. A phase with pseudocubic symmetry was formed for x = 0.1–0.4; a secondary phase developed at x = 0.5. Dielectric measurements showed highly diffusive and dispersive relaxor-like characteristics from 10 to 40 mol% of Bi ( Mg 1/2 Ti 1/2 ) O 3 . These compositions also showed high relative permittivity with low-temperature coefficients of permittivity over a wide range of temperatures −100°C–600°C. Relaxation behavior was quantitatively investigated using the Vogel–Fulcher model, which revealed the activation energy of 0.17–0.22 eV. Prototyped multilayer capacitors of 18 mm × 17 mm × 4 mm dimensions with a capacitance of 12.5 nF at 1 kHz were successfully constructed and demonstrated multiple charge–discharge characteristics up to 10 kV.

Print ISSN: 0002-7820

Digitale ISSN: 1551-2916

Thema: Maschinenbau

Publiziert von Wiley

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Conductivity of iron‐doped strontium titanate in the quenched and degraded states (2018)

Daniel M. Long, Biya Cai, Jonathon N. Baker, Preston C. Bowes, Thorsten J.M. Bayer, Jian‐Jun Wang, Rui Wang, Long‐Qing Chen, Clive A. Randall, Douglas L. Irving, Elizabeth C. Dickey

Wiley

In: Journal of the American Ceramic Society

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Publikationsdatum: 2018

Beschreibung: Abstract The electrical behavior of iron‐doped strontium titanate (Fe:SrTiO3) single crystals equilibrated at 900°C and quenched below 400°C at various oxygen partial pressures () was investigated via impedance spectroscopy and compared to defect chemistry models. Fe:SrTiO3 annealed and quenched between 1.2 × 10−14 and 2.0 × 10−4 Pa exhibits a conduction activation energy (EA) around 0.6 eV, consistent with ionic conduction of oxygen vacancies. However, sudden changes in EA are found to either side of this range; a transition from 0.6 to 1 eV is found in more oxidizing conditions, while a sudden transition to 1.1 and then 0.23 eV is found in reducing These transitions, not described by the widely used canonical model, are consistent with predictions of transitions from ionic to electronic conductivity, based on first principles point defect chemistry simulations. These models demonstrate that activation energies in mixed conductors may not correlate to specific conduction mechanisms, but are determined by the cumulative response of all operative conduction processes and are very sensitive to impurities. A comparison to electrically degraded Fe:SrTiO3 provides insight into the origins of the conductivity activation energies observed in those samples.

Print ISSN: 0002-7820

Digitale ISSN: 1551-2916

Thema: Maschinenbau , Physik

Publiziert von Wiley

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