**4. Summary and Conclusions**

In summary, a series of Al2O3–Al2TiO<sup>5</sup> bulk composites was investigated, with different AT contents (10 and 40 vol.%) and fabricated with different sintering temperature (1450 and 1550 ◦C) in order to develop significantly different microstructural features. The microstructure, crystal structure, and through-thickness residual stress profiles of the samples were obtained.

The main conclusions of the present study are as follows:


**Author Contributions:** Conceptualization, K.F., J.R.-H. and C.B.; methodology, J.R.-H., K.F.; software, W.J.; validation, W.J., S.B. and H.Z.; formal analysis, K.F. and J.R.-H.; investigation, K.F., J.R.-H. and W.J.; resources, J.R.-H., C.B. and S.B.; data curation, K.F.; writing—original draft preparation, K.F. and W.J.; writing—review and editing, K.F. and S.B.; visualization, H.Z.; supervision, P.Y.; project administration, W.F.; funding acquisition, K.F. and W.F. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the National Natural Science Foundation of China, grant number 51805445, 52175209; the Chunhui Plan Cooperative Scientific Research Project of the Ministry of Education of China, grant number 191659; the Opening Foundation of Sichuan Engineering Research Center for Powder Metallurgy, grant number SC-FMYJ2019-04. Beamtime was granted by ISIS ENGIN-X, Exp. No. RB1920330.

**Data Availability Statement:** Some or all data generated or used during the study are available from the corresponding author by request.

**Acknowledgments:** All financial support is greatly appreciated. The ISIS neutron and muon source are thanked for the provision of beamtime for residual strain scanning.

**Conflicts of Interest:** The authors declare no conflict of interest.
