ISO 13124:2011

INTERNATIONAL ISO
STANDARD 13124
First edition
2011-05-15
Fine ceramics (advanced ceramics,
advanced technical ceramics) — Test
method for interfacial bond strength of
ceramic materials
Céramiques techniques — Méthode d'essai pour la résistance de
l'interface des matériaux céramiques

Reference number
©
ISO 2011
©  ISO 2011
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ii © ISO 2011 – All rights reserved

Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Symbols and abbreviated terms .3
5 Principle.3
6 Apparatus.5
6.1 Testing machine .5
6.2 Data acquisition.5
6.3 Dimension-measuring device .5
6.4 Testing fixture.5
7 Test pieces .7
7.1 Test-piece size .7
7.2 Test-piece preparation.7
8 Test procedure.8
8.1 Test mode and rate.8
8.2 Preparation of test pieces.8
8.3 Measurements of the tensile bond strength.8
8.4 Measurements of the shear bond strength.9
8.5 Measurement of the cross-bonded area .10
8.6 Post test.10
9 Calculation of results.10
9.1 Interfacial tensile bond strength.10
9.2 Interfacial shear bond strength.11
10 Test report.12
Bibliography.13

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 13124 was prepared by Technical Committee ISO/TC 206, Fine ceramics.

iv © ISO 2011 – All rights reserved

INTERNATIONAL STANDARD ISO 13124:2011(E)

Fine ceramics (advanced ceramics, advanced technical
ceramics) — Test method for interfacial bond strength of
ceramic materials
1 Scope
This International Standard specifies a test method for determining the interfacial tensile and shear bond
strength of ceramic-ceramic, ceramic-metal, and ceramic-glass joining at ambient temperature by
compression tests on cross-bonded test pieces. Methods for test-piece preparation, test modes and rates
(load rate or displacement rate), data collection and reporting procedures are addressed.
This International Standard applies primarily to ceramic materials, including monolithic fine ceramics and
whisker-, fibre- or particulate-reinforced ceramic composites. This test method can be used for materials
research, quality control, and characterization and design data generation purposes.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3611:2010, Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers
for external measurements — Design and metrological characteristics
ISO 7500-1:2004, Metallic materials — Verification of static uniaxial testing machines — Part 1:
Tension/compression testing machines — Verification and calibration of the force-measuring system
ISO 14704:2008, Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for
flexural strength of monolithic ceramics at room temperature
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
fine ceramic (advanced ceramic, advanced technical ceramic)
highly engineered, high-performance predominately non-metallic, inorganic, ceramic material having specific
functional attributes
α
3.2
cross-bonded sample
test sample in the form of a symmetrical cross, which is prepared by joining two rectangular bars with the
same shape and size
NOTE 1 See Figure 1.
NOTE 2 The two bars joined to form the cross-bonded sample may be the same or different materials.
NOTE 3 The approach used for joining can be any chemical or physical bonding.
NOTE 4 The two bars should be joined perpendicularly and symmetrically within ±1° ( α = 90° ± 1°).
h
Figure 1 — Schematic diagram of the cross-bonded samples
3.3
tensile failure load
maximum tensile load applied to the interface during a tensile bond strength test
3.4
tensile bond strength
maximum mean tensile stress applied to the interface during a bond strength test
NOTE The tensile bond strength is calculated using the tensile failure load and the bonded area.
3.5
shear failure load
maximum shear load applied to the interface during a shear test of the cross-bonded sample
3.6
shear bond strength
maximum mean shear stress applied to the interface during a shear bond strength test
NOTE The shear bond strength is calculated using the shear failure load and the shear loaded area.
2 © ISO 2011 – All rights reserved

b
4 Symbols and abbreviated terms
For the purposes of this document, the symbols and designations given in Table 1 apply.
Table 1 — Symbols and designations
Symbol Designation Unit References
l Test-piece length mm Table 2
h Test-piece thickness mm Figure 1, Table 2
b Test-piece width mm Figure 1, Table 2
α Right angle of cross-bonded sample ° Figure 1
D Diameter of the ball in pressure head mm Figure 3
σ Tensile bond strength MPa Equation 1
t
τ Shear bond strength MPa Equation 4
P Critical load to debond N Equations 1, 4
c
A Tensile loaded area mm Equation 1
A Shear loaded area mm Equation 4
n Number of valid tests 1 Equations 2, 3, 5, 6
σ Mean tensile bond strength MPa Equation 2
t
τ Mean shear bond strength MPa Equation 5
s Standard deviation MPa Equations 3, 6
5 Principle
A cross-bonded sample is loaded in compression which yields tensile or shear stress in the interface until the
occurrence of debonding in the interface. Two different forms of mounting the cross-bonded sample in a
fixture are designed to measure the interfacial tensile and shear bond strength, respectively. In the case of the
former, a uniaxial tensile stress is generated when the testing sample is subjected to a compressive load, as
shown in Figure 2 a). For the latter, a cross-bonded sample is loaded in compression to induce failure by
shear at the interface, as shown in Figure 2 b). The test is usually performed at a constant cross-head
displacement rate. The load at fracture and the bonded area are used to compute the tensile and shear bond
strength.
F F
q
q
a)  Schematic diagram of loading, supporting and bonded area
for cross-bonded sample in the test of the tensile bond strength
F
qq
b)  Schematic diagram of loading, supporting and bonded area
for cross-bonded sample in the test of the shear bond strength
Key
1 loading, supporting and bonded area
F applied load
q uniform resultant stress on the supporting surfaces
Figure 2 — Schematic diagram of measuring the tensile and shear bond strength
using the cross-bonded test piece subjected to compressive load
4 © ISO 2011 – All rights reserved

6 Apparatus
6.1 Testing machine
A suitable testing machine capable of applying a uniform cross-head speed shall be used. The t
...