A preliminary study of thermal expansion compensation in cement by ZrW2O8 additions

Kofteros, M; Rodriguez, Sal; Tandon, Vivek; Murr, L. E.

doi:10.1016/s1359-6462(01)01009-0

Cited by 57 publications

(28 citation statements)

References 5 publications

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“…The calculated values are listed in Tab. 4 showing that the values calculated according to Maxwell and Eshelby models are comparable but higher than the values obtained from experiments. One reason for this discrepancy is seen in the presence of pores in the composites.…”

Section: Thermal Conductivity Of Zrw 2 O 8 / Cu Compositesmentioning

confidence: 56%

“…At present, ZrW 2 O 8 can be mixed with metals, oxides and polymers to prepare composites with the desired thermal expansion properties. Preliminary studies of ZrW 2 O 8 composites comprising a matrix of metallic Al [3], cement [4], polyimide [5], ZrO 2 [6 -7] have been reported. As a metallic matrix, copper is a prior candidate because of its excellent thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and thermal properties of zirconium tungstate/copper composites

Yan¹,

Cheng

et al. 2008

Materialwissenschaft Werkst

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Section: Thermal Conductivity Of Zrw 2 O 8 / Cu Compositesmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Preparation and thermal properties of zirconium tungstate/copper composites

Yan¹,

Cheng

et al. 2008

Materialwissenschaft Werkst

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“…[4][5][6] This combination was chosen for its possible high thermal and electrical conductivity. Preliminary studies of cement/ZrW 2 O 8 composites yielding zero expansion mortars 7 and Al/ZrW 2 O 8 8 composites have been published.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and thermal expansion of ZrO2/ZrW2O8 composites

Lommens

Meyer

Bruneel

et al. 2005

Journal of the European Ceramic Society

104

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In this work, a ceramic composite of ZrW 2 O 8 and ZrO 2 was synthesized, in order to investigate the possibility of compensating the positive thermal expansion of ZrO 2 with the negative thermal expansion (NTE) compound ZrW 2 O 8 , tailoring the thermal expansion of these composites. The NTE material was mixed with varying amounts of ZrO 2 . The thermal expansion coefficients of this series of composites decrease with increasing amounts of ZrW 2 O 8 . Nevertheless, a negative deviation from the values expected by the rule of mixtures was found to be most pronounced in the middle of the compositional region.

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“…It contracts upon heating within a certain range of temperature rises and adding NTE material can make the composite in CTE change. Cubic Zirconium Tungstate (ZrW2O8) exhibits strong, isotropic NTE behavior in a wide temperature scope from 0.3 K to 1050 K. Kofteros [1] conducted an experiment of CTE of cement by adding ZrW2O8. The experiment results showed addition of ZrW2O8 played a vital role in reduction of CTE.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Thermal Expansion Coefficient for Resin Concrete with ZrW2O8

et al. 2015

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This paper presents a novel resin concrete obtained by adding cubic zirconium tungstate (ZrW2O8) as filler. A prediction algorithm on the thermal expansion coefficient (CTE) of resin concrete (including filler) was established on the basis of the meso-mechanics method and a three-phase model for concrete. The concept of twice mixing was also proposed for prediction accuracy. Then, a 2D and 3D irregular polygon aggregate particles packing model was set up by Matlab and the properties of the packing model were simulated by finite element analysis. Finally, resin concrete samples were made and their CTE were measured. Mix proportion and addition of ZrW2O8 as influencing factors were considered in this experiment. The CTE of resin concrete was verified by comparing results of the prediction model, simulation model and experiment. The optimum CTE obtained from the experiment was 1.504 × 10 /K without ZrW2O8, it was found that the addition of ZrW2O8 to resin concrete can make it perform significantly better in thermal expansion.

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A preliminary study of thermal expansion compensation in cement by ZrW2O8 additions

Cited by 57 publications

References 5 publications

Preparation and thermal properties of zirconium tungstate/copper composites

Preparation and thermal properties of zirconium tungstate/copper composites

Synthesis and thermal expansion of ZrO2/ZrW2O8 composites

An Investigation of the Thermal Expansion Coefficient for Resin Concrete with ZrW2O8

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