標(biāo)準(zhǔn)解讀

《GB/T 44536-2024 CVD陶瓷涂層熱膨脹系數(shù)和殘余應(yīng)力試驗(yàn)方法》是一項(xiàng)國(guó)家標(biāo)準(zhǔn),旨在為化學(xué)氣相沉積(CVD)制備的陶瓷涂層提供一套系統(tǒng)的測(cè)試其熱膨脹系數(shù)及殘余應(yīng)力的方法。該標(biāo)準(zhǔn)適用于各種基體材料上通過(guò)CVD工藝形成的陶瓷涂層。

對(duì)于熱膨脹系數(shù)的測(cè)定,標(biāo)準(zhǔn)推薦使用了基于光學(xué)或機(jī)械測(cè)量原理的技術(shù)手段,比如熱機(jī)械分析儀(TMA)。在進(jìn)行實(shí)驗(yàn)時(shí),首先需要準(zhǔn)備具有代表性的樣品,并確保其表面清潔無(wú)污染。然后,在控制條件下加熱樣品,同時(shí)記錄隨溫度變化而產(chǎn)生的長(zhǎng)度變化數(shù)據(jù)。根據(jù)這些數(shù)據(jù)可以計(jì)算出材料的平均線性熱膨脹系數(shù)。此外,還應(yīng)考慮不同溫度區(qū)間內(nèi)可能存在的非線性行為,以及由此帶來(lái)的誤差分析。

關(guān)于殘余應(yīng)力的評(píng)估,則提出了多種技術(shù)路線供選擇,包括X射線衍射法、拉曼光譜法等非破壞性檢測(cè)方法。每種方法都有其適用范圍和技術(shù)要求。例如,采用X射線衍射技術(shù)時(shí),需選取合適的晶面作為測(cè)試對(duì)象;利用拉曼光譜法則要關(guān)注特定頻率范圍內(nèi)峰位移的變化情況。無(wú)論采取哪種方式,關(guān)鍵在于準(zhǔn)確地識(shí)別并量化由于內(nèi)部應(yīng)力導(dǎo)致的微觀結(jié)構(gòu)變化。

在整個(gè)過(guò)程中,標(biāo)準(zhǔn)強(qiáng)調(diào)了對(duì)實(shí)驗(yàn)條件(如溫度、濕度)、設(shè)備校準(zhǔn)狀態(tài)以及操作人員技能水平等方面的要求,以保證結(jié)果的一致性和可比性。此外,還提供了詳細(xì)的步驟說(shuō)明、注意事項(xiàng)以及數(shù)據(jù)處理建議,幫助用戶更好地理解和執(zhí)行相關(guān)測(cè)試。


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文檔簡(jiǎn)介

ICS

81.060.30

CCS

Q30

中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)

GB/T44536—2024

CVD陶瓷涂層熱膨脹系數(shù)和殘余

應(yīng)力試驗(yàn)方法

Testmethodfordeterminingthermalexpansioncoefficientandresidualstressof

CVDceramiccoatings

[ISO23458:2020,Fineceramics(advancedceramics,advanced

technicalceramics)—Testmethodfordeterminingthermalexpansion

coefficientandresidualstressofCVDceramiccoatings,MOD]

2024-09-29發(fā)布2025-04-01實(shí)施

國(guó)家市場(chǎng)監(jiān)督管理總局發(fā)布

國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)

GB/T44536—2024

目次

前言

·····································································································

1

范圍

··································································································

1

2

規(guī)范性引用文件

······················································································

1

3

術(shù)語(yǔ)和定義

···························································································

1

4

原理

··································································································

1

5

儀器設(shè)備

······························································································

2

5.1

通則

······························································································

2

5.2

加熱和冷卻裝置

·················································································

3

5.3

溫度測(cè)量裝置

····················································································

3

5.4

試樣安裝

·························································································

3

5.5

數(shù)據(jù)記錄系統(tǒng)

····················································································

3

5.6

尺寸測(cè)量裝置

····················································································

3

6

試樣

··································································································

3

6.1

試樣

······························································································

3

6.2

試樣尺寸

·························································································

4

6.3

試樣制備

·························································································

5

7

試驗(yàn)步驟

······························································································

5

7.1

試樣尺寸的測(cè)量

·················································································

5

7.2

彈性模量的測(cè)定

·················································································

5

7.3

CVD陶瓷涂層熱膨脹系數(shù)的測(cè)定

·······························································

5

8

計(jì)算

··································································································

5

8.1

CVD陶瓷涂層的熱膨脹系數(shù)(αc)

·····························································

5

8.2

CVD陶瓷涂層的殘余應(yīng)力(σc)

································································

6

9

試驗(yàn)報(bào)告

······························································································

6

參考文獻(xiàn)

··································································································

7

GB/T44536—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件修改采用ISO23458:2020《精細(xì)陶瓷(先進(jìn)陶瓷、先進(jìn)技術(shù)陶瓷)

CVD陶瓷涂層熱膨脹

系數(shù)和殘余應(yīng)力的測(cè)試方法》。

本文件與ISO23458:2020的技術(shù)差異及其原因如下:

—將ISO23458:2020中3.2的術(shù)語(yǔ)由“線熱膨脹系數(shù)”更改為“殘余應(yīng)力”,因規(guī)范性引用文件

已對(duì)“線熱膨脹系數(shù)”有所說(shuō)明,本文件更有必要對(duì)“殘余應(yīng)力”進(jìn)行定義(見(jiàn)3.2);

—用規(guī)范性引用的GB/T16535替換了ISO17139,以適應(yīng)我國(guó)技術(shù)條件,增加可操作性(見(jiàn)第

5章);

—用規(guī)范性引用的GB/T16839.1替換了IEC60584?1,以適應(yīng)我國(guó)技術(shù)條件,增加可操作性(見(jiàn)

5.3);

—將ISO23458:2020中5.4的敘述簡(jiǎn)化為“按照GB/T16535的規(guī)定安裝試樣”,以標(biāo)準(zhǔn)作為依

照,提高操作規(guī)范性(見(jiàn)5.4);

—用規(guī)范性引用的GB/T1216替換了ISO3611,以適應(yīng)我國(guó)技術(shù)條件,增加可操作性(見(jiàn)5.6);

—用規(guī)范性引用的GB/T39686、GB/T39828替換了ISO19603,以適應(yīng)我國(guó)技術(shù)條件,增加可

操作性(見(jiàn)7.2);

—?jiǎng)h除了ISO23458:2020中7.4的CVD陶瓷涂層殘余應(yīng)力的計(jì)算,因其無(wú)須試驗(yàn)操作且在8.2中

已有所體現(xiàn)。

本文件做了下列編輯性改動(dòng):

—為與現(xiàn)有標(biāo)準(zhǔn)協(xié)調(diào),將標(biāo)準(zhǔn)名稱改為《CVD陶瓷涂層熱膨脹系數(shù)和殘余應(yīng)力試驗(yàn)方法》。

請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。

本文件由中國(guó)建筑材料聯(lián)合會(huì)提出。

本文件由全國(guó)工業(yè)陶瓷標(biāo)準(zhǔn)化技術(shù)委員會(huì)(SAC/TC194)歸口。

本文件起草單位:中國(guó)國(guó)檢測(cè)試控股集團(tuán)股份有限公司、東方電氣集團(tuán)東方汽輪機(jī)有限公司、福建

省晉江質(zhì)贏建材有限公司、西安特種設(shè)備檢驗(yàn)檢測(cè)院、深圳三思縱橫科技股份有限公司、江蘇三責(zé)新材

料科技有限公司、江蘇保平信息科技有限公司、天津鑄金科技開(kāi)發(fā)股份有限公司、廣東天域半導(dǎo)體股份

有限公司、湖南新鋒科技有限公司、重慶臻寶科技股份有限公司、陜西新興熱噴涂技術(shù)有限責(zé)任公司、

山東工業(yè)陶瓷設(shè)計(jì)研究院有限公司、華電電力科學(xué)研究院有限公司、陜西固勤材料技術(shù)有限公司、廣東

潮流集團(tuán)有限公司、山田新材料集團(tuán)有限公司、上海嵐玥新材料科技有限公司、株洲精工硬質(zhì)合金有限

公司。

本文件主要起草人:萬(wàn)德田、包亦望、王偉、盧宏奎、鞏秀芳、曹曉英、梁廷峰、閆永杰、

荊強(qiáng)征、陳興生、錢鑄、丁雄杰、魏秋平、楊佐東、尹向陽(yáng)、陳常祝、喬立捷、邱冰山、邱陶松、

袁洪峰、趙兵、李夢(mèng)飛、田遠(yuǎn)、李海燕、付帥、金春霞、毛瑀迪、陳明。

GB/T44536—2024

CVD陶瓷涂層熱膨脹系數(shù)和殘余

應(yīng)力試驗(yàn)方法

1范圍

本文件描述了CVD陶瓷涂層(涂層厚度大于0.03mm,且涂層厚度比基體與涂層總厚度的值小于

1/4)從室溫到2300K的熱膨脹系數(shù)和殘余應(yīng)力的測(cè)試方法,并規(guī)定了試樣制備方法、加載模式、加載

速率、數(shù)據(jù)收集以及報(bào)告格式。

本文件適用于金屬基體或陶瓷基體上的CVD陶瓷涂層。本試驗(yàn)方法可用于材料性能研究、質(zhì)量控

制、性能表征以及數(shù)據(jù)采集等方向。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中,注日期的引用文

件,僅該日期對(duì)應(yīng)的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用

于本文件。

GB/T1216外徑千分尺

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