Understanding the influence of graphene and nonclay on the microcracks developed at cryogenic temperature

Vishanth Uppu; Kunal Mishra; Libin K. Babu; Ranji Vaidyanathan; Vishanth Uppu; Kunal Mishra; Libin K. Babu; Ranji Vaidyanathan

doi:10.3934/matersci.2019.4.559

AIMS Materials Science

2019, Volume 6, Issue 4: 559-566. doi: 10.3934/matersci.2019.4.559

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Understanding the influence of graphene and nonclay on the microcracks developed at cryogenic temperature

1.
School of Material Science and Engineering, Oklahoma State University, Tulsa, OK 74106, USA
2.
School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK 74078, USA

Received: 20 May 2019 Accepted: 27 June 2019 Published: 02 July 2019

This research examines reduction of microcracks in polyurea by addition of graphene and nanoclay on account of potential improvement in barrier properties. Graphene and nanoclay were added in different wt. fractions to polyurea followed by thin film preparation. The prepared thin film samples were characterized using scanning electron microscopy. Surface images before and after exposure to cryogenic temperature indicate that controlled addition of graphene and nanoclay to polyurea thin film can lead to a reduction in microcracking caused by thermal shocks.
- graphene,
- polyurea,
- nanoclay,
- microcracks,
- cryogenic
Citation: Vishanth Uppu, Kunal Mishra, Libin K. Babu, Ranji Vaidyanathan. Understanding the influence of graphene and nonclay on the microcracks developed at cryogenic temperature[J]. AIMS Materials Science, 2019, 6(4): 559-566. doi: 10.3934/matersci.2019.4.559

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Abstract

This research examines reduction of microcracks in polyurea by addition of graphene and nanoclay on account of potential improvement in barrier properties. Graphene and nanoclay were added in different wt. fractions to polyurea followed by thin film preparation. The prepared thin film samples were characterized using scanning electron microscopy. Surface images before and after exposure to cryogenic temperature indicate that controlled addition of graphene and nanoclay to polyurea thin film can lead to a reduction in microcracking caused by thermal shocks.

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