PhD opening in 3D printed stone for heritage buildings

Opportunity for Advanced Research in 3D Printed Stone Technology

The Chair for Digital Building Technologies is seeking a dedicated individual to engage in pioneering research focused on the 3D printing of stone for the restoration of heritage buildings. This research encompasses two interrelated areas: creating an innovative powder-bed printing system that allows for spatially graded material deposition, and utilizing this technology to manufacture replacement components for historic stone structures.

Project Overview

Stone has been a foundational building material throughout history, but its inherent variability poses challenges for modern restoration practices. A successful replacement part must not only match the original in properties but also harmonize with structures that have withstood the test of time. Given the depletion of many historical quarries, finding suitable natural stone often falls short of meeting these criteria.

This project proposes an alternative approach by treating the material properties of stone as a design medium. The developed powder-bed printing platform allows for independent control of aggregates, powder binders, and liquid activators during production. The next critical phase of this research will involve varying these materials continuously within a single printed element, ultimately creating a machine that evolves alongside its output.

Collaboration with a materials science group focused on the deterioration of sandstones will bolster this initiative, as printed samples with precisely engineered gradients are essential for their investigations. The project aims to extend the capabilities of laboratory research to architectural-scale applications, paving the way for innovative façade design strategies.

Key Responsibilities

• Design, build, and commission a laboratory-scale powder-bed printer featuring dual powder and dual liquid feed systems.
• Utilize the printer to create stone replacement parts that adhere to conservation standards while integrating with the historical context.
• Develop strategies for the connection and interaction of printed elements with existing structures, exploring variations in color, texture, and veining.
• Collaborate with the partner chair to produce samples that will support their research while refining the printing process based on experimental findings.
• Contribute to the academic community through publications, presentations at international conferences, and mentoring students in relevant projects.

Candidates Profile

• A strong background in digital fabrication, demonstrated by a portfolio of relevant work.
• A Master’s degree in architecture or a closely related field, along with considerable design experience.
• Expertise in building fabrication equipment, including mechanical design and prototyping; knowledge of electronics and control software is advantageous.
• Proficiency in computational design with a proven ability to bring digital models to physical reality.
• Interest in the properties and applications of stone, with scientific characterization supported by the partner group.
• Fluency in English is essential, and conversational knowledge of German is beneficial.
• Exceptional communication skills and a collaborative attitude are crucial for working within interdisciplinary teams.

Work Environment

At the Chair for Digital Building Technologies within the Institute of Technology in Architecture, our research sits at the intersection of computational design, material science, and large-scale construction fabrication. With a decade of experience, the group has established a network of devices that integrate design concepts directly into practical applications. Our diverse and international team promotes an inclusive environment, emphasizing flexible working conditions to support team members' effectiveness and well-being.

Commitment to Diversity and Sustainability

ETH Zurich fosters an inclusive culture where opportunities are equal, and diversity is valued. Our commitment to a respectful working and learning environment helps all staff and students to thrive. Sustainability is another cornerstone of our ethos, and we continuously strive toward a climate-neutral future.

Network and Community Engagement

Join us in pushing the boundaries of technology and heritage conservation. Engage with a community dedicated to innovation and excellence, while also contributing to research that shapes the future of architecture and materials science.