Download Petagna CERN-CSEM meeting final

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Transcript
CERN-CSEM Meeting
on potential applications of
Ceramic Additive Manufacturing
Jan 10th 2017
Paolo Petagna
(EP-DT-FS)
Recent CERN-CSEM collaborations
•
•
•
•
•
•
Focusing on micro-channel cooling
Linked to MEMS-derived Si micro-technologies
Production of silicon cold plate prototypes
Studies on Si-Si direct bonding
Studies on suited metal deposition
New project in preparation: “Radiation hard, microengineering solutions for thermal management in high
energy physics and space applications” (KT Funds)
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
HL-LHC Pixel Upgrade programmes
Between 2018 and 2025 the 4 major LHC experiments
will upgrade their Pixel detectors in view of the greatly
enhanced performance of the LHC: minimization of
material and maximization of cooling performance are
of paramount importance.
This calls for an enhanced integration between
thermal management devices and support
structures
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
Interest and limits of Additive Manufacturing
Additive manufacturing presents many interesting features,
in particular offering the opportunity of manufacturing highly
complex shapes, difficult (or expensive) to achieve with
standard manufacturing techniques.
However up to now most of the Additive Manufacturing
techniques use either polymers or metals.
• Polymers: limited choice, limited radiation resistance,
unknown long-term stability, limited pressure resistance…
• Metals: limited choice (although Ti is certainly a “good”
material), CTE mismatch problems, heavy mass…
Is the onset of reliable Additive Manufacturing
techniques targeting ceramic material going to change
this perspective?
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
Potential lines of interest
Internal discussions have brought to light at least FOUR
cases of potential interest of ceramic Additive
Manufacturing in this field (there can be possibly more).
In order of growing complexity and challenge level, they
can be classified as follows:
1. Hydraulic connections
2. Micro-channel devices
3. Complex cooling pipes integrated in structures
4. Distribution pipe to an array of micro-channel devices
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
1 - Hydraulic connections
Connection of silicon micro-channels with outer metal tubes.
Additive manufacturing permits to easily achieve features that would be very
complex with standard machining.
Successfully tested in plastic or metal: how about CERAMIC?
MAIN ISSUE: long-term reliable and gas-tight bonding to cooling device on
one side and to metal pipe (stainless steel or titanium) on the other.
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
2 – Micro-channel devices
First example of silicon microchannel device in simple geometry.
Can it be reproduced by 3D-printed ceramic?
Can it be longer? How much longer?
Achievable flatness?
Can the CTE of the material be modified to be as close as
possible to the one of silicon?
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
2 – Micro-channel devices
Second example of silicon microchannel device in more complex
geometry.
Can it be reproduced by 3D-printed ceramic?
Flatness?
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
3 - Cooling pipes integrated in structure
Can a LONG and COMPLEX-SHAPED tube (say, 1.5 mm I.D.) be
realized in 3D-printed ceramic and possibly integrated with additional
ceramic structural elements to become the supporting structure?
Maximum length?
Geometry precision?
Maximum inner pressure?
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
4 – Distribution to multiple m-channel devices
Can the concept of hydraulic connector be combined with the LONG and
COMPLEX-SHAPED tube (say, 1.5 mm I.D.) realized in 3D-printed ceramic?
Can it be possibly integrated with additional ceramic structural elements to
become the supporting structure?
Maximum length?
Geometry precision?
Maximum inner pressure?
CERN-CSEM Meeting - Jan 10th 2017
[email protected]
Similar