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Coated glass pane

A glass plate, coating technology, applied in the direction of thin material handling, transportation and packaging, etc., can solve the problem of unsatisfactory resistance to mechanical and chemical influences, etc.

Active Publication Date: 2013-03-13
PILKINGTON GRP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In particular it was found that coatings with Zn-Sn oxide anti-reflection layers progressively show relatively high haze values ​​during heat treatment at temperatures above 650 °C, whereas coatings with silicon(oxy)nitride anti-reflection layers show Unsatisfactory robustness against mechanical and chemical influences (robustness)

Method used

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  • Coated glass pane
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] In a sputtering device with several independent sputtering chambers, a coating containing several layers shown in Table 1 below was deposited on the glass plate, and the following targets or target pairs were set in the chambers:

[0103] (1) The first target pair, including:

[0104] (a) Metal-doped silicon target (with SIPA TM 10 is commercially available from W.C. Heraeus), which contains about 10 wt.% Al as the main dopant, and

[0105] (b) Ceramic aluminum-doped zinc oxide target (with ZAO TM Commercially available from W.C. Heraeus), which contains about 2wt.% Al 2 O 3 ;

[0106] (2) Zinc target;

[0107] (3) Silver target;

[0108] (4) The second target pair, including

[0109] (a) Ceramic TiO x Target (x x CLATO TM Commercially available from W.C. Heraeus)

[0110] (b) Ceramic ZnO:Al target (with ZAO TM Commercially available from W.C. Heraeus), which contains about 2wt.% Al 2 O 3 .

[0111] The sputtering device allows the glass plate to be moved at a controlled rate rel...

Embodiment 2

[0121] A coating having substantially the same layer sequence and thickness as in Example 1 was deposited. However, the difference from Example 1 is that the compound layer is deposited by moving the substrate about 4 times faster under the Al-doped Si(Si:Al) / Al-doped ZnO(ZnO:Al) target pair , And by correspondingly adopting 8-16-8 movement to deposit 3 compound layers with a total thickness substantially the same as that of Example 1. Table 3 summarizes the deposition conditions:

[0122] table 3

[0123] Attached drawing

mark

Target composition Power

[kW] Power

Types of Ar

[sccm] N 2

[sccm] O 2

[sccm] Rate

[mm / min] Move

frequency

15Si:Al /

ZnO:Al

10 / 2

Pulsed DC

200

150

-

3284

8 16 Zn14 Direct current140-45059001 13 Ag1.5 Direct current250--18751

17TiO x /

ZnO:Al

3 / 3

Pulsed DC

175-

-

967

1

39Si:Al /

ZnO:Al

10 / 2

Pulsed DC

200

150-

3284

16 26 Zn14 Direct current140-450...

Embodiment 4-9 and comparative example 10

[0139] In another series of experiments, the Si:Zn atomic ratio in the compound layer of the coating with a layer sequence similar to that of Example 1 was changed, in addition to the following differences:

[0140] -Set the thickness of the compound layers 15, 39 and 24 in the coating of the present invention and the thickness of the (aluminum-doped) silicon nitride layer in the comparative coating of Comparative Example 10 to 40, 80, and 40 nm respectively (as compared with the example 1 compared with 35, 70 and 35nm in Comparative Example 3), 2-4-2 movement is achieved under the target at a slightly reduced rate.

[0141] -The power ratio of the Si:Al / ZnO:Al targets used to deposit the compound layers 15, 39 and 24 of another embodiment of the invention varies between 15:2 (Example 4) and 15:8 (Example 9) Therefore, the Si:Zn atomic ratio shown in the second column of Table 5 (derived from XPS analysis) (compared to approximately 2:1 in Examples 1 and 2) is achieved in these lay...

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Abstract

The invention relates to a coated glass pane with a low-e and / or solar control coating comprising at least one layer sequence which comprises at least the following transparent layers: a lower anti-reflection layer, an IR-reflecting layer, an upper anti-reflection layer. At least one of the anti-reflection layers comprises at least one compound layer containing a mixture of an (oxy)nitride of Si and / or Al and of ZnO. The inventive coated glass panes are preferably heat treatable, e.g. toughenable and / or bendable.

Description

Technical field [0001] The present invention relates to coated glass panels with low-e (low-e) and / or solar control coatings. Such a visible light transparent coating is well known in the prior art and usually includes at least one infrared reflective layer embedded between a transparent lower dielectric anti-reflection layer and an upper dielectric anti-reflection layer. Background technique [0002] The need for such heat-treatable coated glass sheets is increasing day by day. Many applications require heat-treated glass panels, which are tempered to impart safety properties and / or be bent, for example, window glass used in buildings or automobiles. It is known that in order to thermally temper and / or bend a glass sheet, it is necessary to treat the glass sheet as follows: by heat treatment at a temperature close to or higher than the softening point of the glass used and then either temper the glass by rapid cooling or bend the glass by means of bending equipment glass. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/36
CPCC03C17/366C03C17/3694C03C17/36C03C17/3639C03C17/3618C03C17/3644C03C17/3626Y10T428/265C03C17/06C03C17/22
Inventor G·加格里亚蒂D·A·伍德J·R·赛德尔M·朗希
Owner PILKINGTON GRP LTD
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