"hardcoat" meaning in English

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      "expansion": "hard + coat",
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  "etymology_text": "From hard + coat.",
  "forms": [
    {
      "form": "hardcoats",
      "tags": [
        "plural"
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  "lang_code": "en",
  "pos": "noun",
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      "coordinate_terms": [
        {
          "word": "softcoat"
        }
      ],
      "examples": [
        {
          "ref": "2012, Michael Quinten, A Practical Guide to Optical Metrology for Thin Films:",
          "text": "Another transparent material for passivation is silicon nitride, Si₃N₄, that also acts as hardcoat.",
          "type": "quote"
        },
        {
          "ref": "2013, Steven Abbott, Nigel Holmes, Nanocoatings: Principles and Practice: From Research to Production, page 255:",
          "text": "Such brute-force tactics generally fail for hardcoats on flexible substrates and there seems to be no correlation between scratch resistance and modulus once a certain minimum modulus (~1 GPa) has been reached.",
          "type": "quote"
        },
        {
          "ref": "2017, Yogi Goswami, Advances in Solar Energy, volume 16:",
          "text": "Super Thin Glass: SAIC of McLean, Virginia, and NREL have been developing a front surface mirror concept with a hardcoat protective layer. The material uses an ion-beam-assisted deposition (IBAD) process to deposit the very hard (cleanable), dense (protective) alumina topcoat.",
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        }
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      "glosses": [
        "A coating that provides a hard, protective layer."
      ],
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  "word": "hardcoat"
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    {
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        "2": "hard",
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  ],
  "etymology_text": "From hard + coat.",
  "forms": [
    {
      "form": "hardcoats",
      "tags": [
        "plural"
      ]
    }
  ],
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  "lang_code": "en",
  "pos": "noun",
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          "text": "Another transparent material for passivation is silicon nitride, Si₃N₄, that also acts as hardcoat.",
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        },
        {
          "ref": "2013, Steven Abbott, Nigel Holmes, Nanocoatings: Principles and Practice: From Research to Production, page 255:",
          "text": "Such brute-force tactics generally fail for hardcoats on flexible substrates and there seems to be no correlation between scratch resistance and modulus once a certain minimum modulus (~1 GPa) has been reached.",
          "type": "quote"
        },
        {
          "ref": "2017, Yogi Goswami, Advances in Solar Energy, volume 16:",
          "text": "Super Thin Glass: SAIC of McLean, Virginia, and NREL have been developing a front surface mirror concept with a hardcoat protective layer. The material uses an ion-beam-assisted deposition (IBAD) process to deposit the very hard (cleanable), dense (protective) alumina topcoat.",
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        }
      ],
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  "word": "hardcoat"
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