scholarly journals Impedance spectroscopy measurement of metakaolin-based alkali-activated building materials

2021 ◽  
Vol 1039 ◽  
pp. 012020
Author(s):  
I Kusak ◽  
M Lunak ◽  
C Mizerova ◽  
P Rovnanik
Keyword(s):  
Impedance Spectroscopy ◽  
Building Materials ◽  
Spectroscopy Measurement ◽  
Alkali Activated

scholarly journals A CMOS Quadrature Signal Generator for Impedance Spectroscopy Measurement Systems

2018 ◽  
Vol 6 ◽  
Author(s):  
Alejandro Márquez Marzal ◽  
Nicolás Medrano Marqués ◽  
Belén Calvo López ◽  
Pedro A. Martínez Martínez
Keyword(s):  
Impedance Spectroscopy ◽  
Power Consumption ◽  
Signal Generator ◽  
Active Area ◽  
Fully Integrated ◽  
Resolution Power ◽  
Measurement Systems ◽  
Quadrature Signal ◽  
Spectroscopy Measurement ◽  
On Chip

A CMOS fully integrated quadrature signal generator for on-chip impedance spectroscopy (IS) applications is presented. Frequency can be digitally tuned from 5 to 350 kHz with 12-bit resolution. Power consumption is 0.77 mW and active area is 0.129 mm2. Its suitability for the target application is validated with a Randles test impedance cell modelling a protein.

scholarly journals Geopolymer Based on Mechanically Activated Air-cooled Blast Furnace Slag

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1134 ◽  
Author(s):  
Ilda Tole ◽  
Magdalena Rajczakowska ◽  
Abeer Humad ◽  
Ankit Kothari ◽  
Andrzej Cwirzen
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Portland Cement ◽  
Sodium Silicate ◽  
Blast Furnace Slag ◽  
Ball Mill ◽  
Efficient Solution ◽  
Building Materials ◽  
Furnace Slag ◽  
Alkali Activated

An efficient solution to increase the sustainability of building materials is to replace Portland cement with alkali-activated materials (AAM). Precursors for those systems are often based on water-cooled ground granulated blast furnace slags (GGBFS). Quenching of blast furnace slag can be done also by air but in that case, the final product is crystalline and with a very low reactivity. The present study aimed to evaluate the cementitious properties of a mechanically activated (MCA) air-cooled blast furnace slag (ACBFS) used as a precursor in sodium silicate alkali-activated systems. The unreactive ACBFS was processed in a planetary ball mill and its cementing performances were compared with an alkali-activated water-cooled GGBFS. Mixes based on mechanically activated ACBFS reached the 7-days compressive strength of 35 MPa and the 28-days compressive strength 45 MPa. The GGBFS-based samples showed generally higher compressive strength values.

Use of Glassy Slag from Biomass Combustion in the Building Industry – Coarse Aggregate

2015 ◽  
Vol 1122 ◽  
pp. 219-224 ◽  
Author(s):  
Filip Khestl ◽  
Veronika Šulková ◽  
Pavel Mec
Keyword(s):  
Soil Temperature ◽  
Building Materials ◽  
Coarse Aggregate ◽  
Waste Product ◽  
Biomass Combustion ◽  
Building Industry ◽  
Basic Characteristics ◽  
Alkali Activated

The work deals with possibilities using of glassy slag produced during the combustion of biomass in construction. This is a waste product with glass characteristic, which may also contain ash and other pollutants. This waste is significantly different according to the used types of biomass, soil, temperature and time of combustion. Its structure is mostly porous and glassy. Building materials in which may be applied are cementitious or alkali-activated composites in which can appear in due to its nature as a filler or binder. In the paper the basic characteristics with the focus on use of this slag as a coarse aggregate were examined.

Investigation of Multidimensional Electrothermal Impedance Spectroscopy Measurement on Lithium Ion Battery Cell

2015 ◽  
Vol 70 (1) ◽  
pp. 305-310 ◽  
Author(s):  
M. Swierczynski ◽  
D. I. Stroe ◽  
M. R. Khan ◽  
S. K. Kaer ◽  
R. Teodorescu
Keyword(s):  
Impedance Spectroscopy ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Battery Cell ◽  
Spectroscopy Measurement

Study on Preparation and Properties of Yttria Stabilized Zirconia Solid State Electrolyte

2013 ◽  
Vol 544 ◽  
pp. 64-67
Author(s):  
Wei Liu ◽  
Ge Ming Liu ◽  
Niu Sheng Peng ◽  
Da Zhi Sun
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Impedance Spectroscopy ◽  
Yttria Stabilized Zirconia ◽  
Synthesis Methods ◽  
Stabilized Zirconia ◽  
Solid State Electrolyte ◽  
Spectroscopy Measurement ◽  
Basic Performance

Abstract. Currently, Yttria-stabilized zirconia solid state electrolyte are widely used in various fields . The basic performance of Yttria-stabilized zirconia (5YSZ) prepared by different synthesis methods and sintering temperatures are studied in this paper ,their phase compositions and microstructure are studied with XRD and SEM. The ionic conductivity of 5YSZ sintered at different temperature are studied with A.C. impedance spectroscopy measurement.

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